{"@context":"https://schema.org","@type":"Product","name":"10 Keystone COUGAR HALF-TON Travel Trailers for sale","offers":{"@type":"AggregateOffer","offerCount":10,"lowPrice":"10999.00","highPrice":"57950.00","priceCurrency":"USD","offers":[{"@type":"Offer","url":"https://www.rvt.com/buy/details/2021-keystone-cougar-half-ton-25rds/8532ac2b-5b27-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2021 KEYSTONE COUGAR HALF-TON 25RDS","description":"2021 Keystone RV Cougar Half-Ton 25RDS,

WE MAKE BUYING AN RV EASY WITH NO HASSLE PRICES AND NO SURPRISE FEES OR CHARGES!

ROUTE 66 CERTFIED PRE-OWNED RV! 66 DAY LIMITED WARRANTY! ASK ABOUT LONGER SERVICE CONTRACT OPTIONS!

THIS RV IS AVAILABLE FOR MAXXGUARD EXTERIOR/INTERIOR PROTECTION! ASK FOR DETAILS!

This Keystone Cougar Half-Ton travel trailer 25RDS includes:

Route 66 Certified Pre-Owned RV! 66 Day Limited Warranty! Ask About Longer Service Contract Options!
$100 In Store Parts Credit
Camper College Orientation
Fresh Wheel Bearing Pack/Inspection
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219!
Electric Stabilizer Jacks
OTG Solar Camping Package
8 Cubic Foot RV Gas/Electric Fridge
iN Command Pro With Global Connect
50 Amp Service
1/2 Ton Anniversary Package
1/2 Ton Comfort Package
Camping In Style Package
Climate Guard Protection Package
Private Bedroom
68\" Tri-Fold Sleeper Sofa
Walk-Through Bath
Fireplace
Dual Entry
Pass-Through Storage

This Cougar Half-Ton travel trailer has an excellent dining area with its huge rear U-shaped dinette! Right next to the dinette is a large slide out that holds the 68\" tri-fold sleeper sofa, 8-cubic foot refrigerator, and pantry. The kitchen has been excellently appointed with a Furrion range, foil-wrapped seamless countertops, a stainless steel undermount sink, and a microwave, and you will be grateful that you can access both sides of the walk-through bathroom. The private bedroom is ultra convenient with its exterior entrance, king-size bed, and wardrobe/nightstands on either side of the bed.

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the preparations for 4G and Wi-Fi, the in-floor heating ducts, and the Hyper Deck flooring. The Cougar Half-Ton has a Climate Guard protection package to keep you safe during inclement weather, and you'll also find an iN-Command Generation 3 with global connect. Use the 21\" Furrion range with Piezo ignition to create all of those familiar meals from home, and add on the optional Off The Grid Solar Camping Package that comes with a roof-mounted solar panel, 30 AMP solar charging system, 2,000W pure sine inverter, and four inverted outlets.

","itemCondition":"Used","priceCurrency":"USD","price":"26999.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-29rlp/6b94c41a-51ba-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 29RLP","description":"2026 Keystone RV Cougar Half-Ton 29RLP,

WE ARE MONTANA'S LARGEST COUGAR DEALER WITH MONTANA'S LOWEST COUGAR PRICES....GUARANTEED!

This Keystone Cougar Half-Ton travel trailer 29RLP includes:

2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For $219!
Automatic Leveling System
2nd 15K Air Conditioner
12 Volt 10 Cubic Foot Fridge
50 Amp Service With 2nd AC Prep
2nd Power Awning
Fireplace
Solar Flex Protect 220 Watt Solar System
Climate Guard Protection Package
Cougar Innovation Package
Towing With Confidence Package Plus ABS
Professional Grade Camping Package
King Bed
Full Bath
Kitchen Island
Two 10' Power Awnings
Two Kitchen Pantries

Trips spent in this travel trailer are sure to bring memories! The dual opposing slides in the combined kitchen and living area provide your crew with plenty of space to relax on the theater seating, dine at the dinette table, and prep meals with the kitchen island. There is also a tri-fold sleeper sofa here for guests and a pivoting entertainment center with a hidden pantry to keep snacks stocked. And a second pantry and hutch provides even more storage! You'll love having your own private bedroom up front, complete with a king bed, dual bedside drawers and nightstands and additional storage drawers to keep your space tidy. Outside, you'll find two power awnings, a 2\" accessory hitch, and a drop frame pass-thru storage for fishing poles, hiking gear, and more!

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside USB outlets to keep your electronics charged.

","itemCondition":"Used","priceCurrency":"USD","price":"49950.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-33rli/17504f18-147a-11f1-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 33RLI","description":"2026 Keystone RV Cougar Half-Ton 33RLI,

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO 2 BATTLE BORN HEATED 100 AMP LITHIUM BATTERIES FOR $1,999!

This Keystone Cougar Half-Ton travel trailer 33RLI includes these options:

Umber Luxe Interior
2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219.95!
Automatic Leveling System
Solar Flex Discover 440 Watt Solar/Inverter Package
King Bed
Free Standing Dinette With Ottoman
12 Volt 10 Cubic Foot Fridge
50 Amp Service With 2nd AC Prep
2nd Power Awning
Fireplace
Climate Guard Protection Package
Cougar Innovation Package
Towing With Confidence Plus ABS
Professional Grade Camping Package
Opposing Slides
Kitchen Island
Fireplace
68\" Tri-Fold Sleeper Sofa

You'll definitely want to snatch up this Cougar Half-Ton travel trailer if you're a couple or small family that wants to live in comfort while at the campsite! There is a private bedroom at the front, and it has a queen bed slide or optional king bed, full-width wardrobe, and a dresser to keep your clothes tidy. Right next to the bedroom is a full bathroom that comes with a linen closet with washer and dryer prep. The main living area is what truly gives you the royal treatment because it has theater seating directly across from the entertainment center and fireplace, a kitchen island that you can gather around when it's snack time, a booth dinette that will serve as a bed or a dinner table, and a 68\" tri-fold sleeper sofa with end tables for a cold drink. The kitchen also has a pantry, so you can keep your trailer stocked with goodies throughout the whole trip.

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside USB outlets to keep your electronics charged.

","itemCondition":"Used","priceCurrency":"USD","price":"57950.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-26lbw/4039fb36-45f3-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 26LBW","description":"2026 Keystone RV Cougar Half-Ton 26LBW,

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO 2 BATTLE BORN HEATED LITHIUM 100 AMP INTELLIGENT BATTERIES AND THE SMART HUB MONITOR FOR $2,499!

This Keystone Cougar Half-Ton travel trailer 26LBW includes:

2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219!
Automatic Leveling System
Theater Seats In Place Of Tri Fold Sofa
Solar Flex Protect 220 Watt Solar System
Fireplace
50 Amp Service With 2nd AC Prep
12 Volt 10 Cubic Foot Fridge
Climate Guard Protection Package
Cougar Innovation Package
Towing With Confidence ackage Plus ABS
Large Slide Out
King Bed
2\" Accessory Hitch
Kitchen Pantry

Wherever you decide to camp in this travel trailer, you'll be met with comfort and convenience! The full rear bath includes a space saving sliding door, toilet, sink, and linen closet for towels. A large slide out provides more space to move about, and here you'll enjoy the tri-fold sleeper sofa and booth dinette with storage drawers. There is also a fireplace and TV across from the furniture to enjoy movie nights! The chef of your group can make meals on the cooktop or in the microwave, and there is a pull-out countertop for extra counter space. Up front, a private bedroom includes a king bed, dual nightstands, and washer and dryer prep.

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside USB outlets to keep your electronics charged.

","itemCondition":"Used","priceCurrency":"USD","price":"44950.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-22mls/42127918-45f3-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 22MLS","description":"2026 Keystone RV Cougar Half-Ton 22MLS,

SALE! WAS $41,950 BUT NOW IS ON SALE FOR $39,999 THROUGH 7-31-26!

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO TWO BATTLE BORN INTELLIGENT HEATED LITHIUM 100 AMP BATTERIES WITH THE SMART HUB MONITOR FOR $2,499!

This Keystone Cougar Half-Ton travel trailer 22MLS includes these options:

Umber Luxe Interior
2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219!
Automatic Leveling System
Solar Flex Protect 220 Watt Expandable Solar System
12 Volt 10 Cubic Foot Fridge
Professional Grade Camping Package
Towing With Confidence Package Plus ABS
Cougar Innovation Package
Climate Guard Protection Package
King-Size Bed
Theater Seating
Booth Dinette
Large Slide
Pass-Through Storage

With a king-size bed, this Cougar Half-Ton travel trailer shows that you can still be comfortable even while you're away from home! The bed has drawers and nightstands on either side to keep your belongings tidy. There is a convenient shoe cubby right as you enter the unit to keep this space picked up as well. Right next to the booth dinette is the pantry, and next to the pantry is the full bathroom which is certainly one of the most valuable features to any trailer.

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside USB outlets to keep your electronics charged.

","itemCondition":"Used","priceCurrency":"USD","price":"39999.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2025-keystone-cougar-half-ton-29rlpwe/a7d2ac5e-0556-11f0-a33f-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2025 KEYSTONE COUGAR HALF-TON 29RLPWE","description":"2025 Keystone RV Cougar Half-Ton 29RLPWE, SALE! WAS $49,950 BUT NOW IS ON SALE FOR $43,999 THROUGH 7-31-2026!

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO TWO BATTLE BORN INTELLIGENT HEATED LITHIUM 100 AMP BATTERIES WITH THE SMART HUB MONITOR FOR $2,499!

WE ARE MONTANA'S LARGEST COUGAR DEALER WITH MONTANA'S LOWEST COUGAR PRICES!

This Keystone Cougar 29RLPWE includes these options:

2 RV Deep Cycle Batteries-Lithium Upgrade Available
$350 In Store Parts Credit
Camper College Orientation

1 Year Route 66 RV Club Membership

24/7 Tech Assistance

10% Parts Discount At All Route 66 Locations

10% Camping Discount At KOA

Solar Flex Protect 220 Watt Expandable Solar System

Automatic Leveling System

Towing With Confidence Package With ABS

Cougar Innovation Package

Climate Guard Protection Package

Fireplace

2nd Power Awning

50 Amp Service With 2nd AC Prep

Free Standing Dinette

12 Volt 10 Cubic Foot Fridge

","itemCondition":"Used","priceCurrency":"USD","price":"43999.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-28bhs/456c16bf-45f3-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 28BHS","description":"2026 Keystone RV Cougar Half-Ton 28BHS,

WE ARE MONTANA'S LARGEST COUGAR DEALER WITH MONTANA'S LOWEST COUGAR PRICES....GUARANTEED!

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO 2 BATTLE BORN HEATED LITHIUM 100 AMP INTELLIGENT BATTERIES AND THE SMART HUB MONITOR FOR $2,499!

This Keystone Cougar Half-Ton travel trailer 28BHS includes:

2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219!
Automatic Leveling System
Theater Seats In Place Of Tri Fold Sofa
2nd 15K BTU Air Conditioner
Solar Flex Protect 220 Watt Solar System
50 Amp Service With 2nd AC Prep
12 Volt 10 Cubic Foot Fridge
Fireplace
Climate Guard Protection Package
Cougar Innovation Package
Towing With Confidence Package Plus ABS
Professional Grade Camping Package
Double-Size Bunks
Large Slide Out
Hidden Storage behind TV
Pull-Out Storage under Bunks

With dual entry doors in this travel trailer, you can enter in through the main living area or the full bath for convenience! Once inside, the sleeper sofa and booth dinette provide places to relax, eat, and play games, plus there is an entertainment center with hidden storage behind to keep movies organized. A full kitchen with a three burner cooktop and 12V refrigerator will allow you to cook and store food, or you can head outdoors to use the outdoor kitchen prep area. There is also drop-frame storage outside for fishing poles and hiking gear, and the 21' electric awning provides shade as you relax. When it's time to call it a night, the king bed in the front private bedroom is sure to bring comfort, while the little ones take the double-size bunks, and any other guests can sleep on the living room furniture!

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside US","itemCondition":"Used","priceCurrency":"USD","price":"44950.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2012-keystone-cougar-half-ton-21rbswe/9ea80e09-3e18-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2012 KEYSTONE COUGAR HALF-TON 21RBSWE","description":"2012 Keystone RV Cougar Half-Ton Series 21RBSWE,

SALE! WAS $12,999 BUT NOW IS ON SALE FOR $10,999 THROUGH 7-31-26!

WE MAKE BUYING AN RV EASY WITH NO HASSLE PRICES AND NO SURPRISE FEES OR CHARGES!

This Keystone Cougar 21RBSWE includes these options:

Camper College Orientation
$100 In Store Parts Credit
1 Year Route 66 RV Club Membership
- 24/7 Tech Support
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219!
Autumn Night Interior
Polar Package Plus
Power Awning

","itemCondition":"Used","priceCurrency":"USD","price":"10999.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-25fkd/42f70bff-45f3-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 25FKD","description":"2026 Keystone RV Cougar Half-Ton 25FKD,

WE MONTANA'S LARGEST COUGAR DEALER WITH MONTANA'S LOWEST COUGAR PRICES....GUARANTEED!

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO 2 BATTLE BORN HEATED LITHIUM 100 AMP INTELLIGENT BATTERIES AND THE SMART HUB MONITOR FOR $2,499!

This Keystone Cougar Half-Ton travel trailer 25FKD includes:

2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219!
Automatic Leveling System
Theater Seats In Place Of Tri Fold Sofa
2nd 15 AC
50 Amp Service With 2nd AC Prep
12 Volt 10 Cubic Foot Fridge
Fireplace
Solar Flex Protect 220 Watt Solar System
Climate Guard Protection Package
Cougar Innovation Package
Towing With Confidence Package Plus ABS
Professional Grade Camping Package
Queen Bed with Nightstands
Booth Dinette
Dual Entry

With a queen-size bed and a king bed option, this Cougar Half-Ton travel trailer shows that you can still be comfortable even while you're away from home! The bed slides out to provide more interior space and there is a wardrobe opposite near the private entry door. The main entry up front leads into a spacious combined kitchen and living area with the front kitchen offering plenty of counter space and overhead storage. There is a 12-volt refrigerator to the left of the entry door, and access to a walk-in pantry is right around the corner from the pivoting entertainment center opposite a tri-fold sofa sleeper and booth dinette slide. This unit also features a full-width walk-thru bath giving you plenty of room to shower and change.

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside USB outlets to keep your electronics charged.

","itemCondition":"Used","priceCurrency":"USD","price":"46950.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-keystone-cougar-half-ton-22mls/525bce7f-e3bf-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 KEYSTONE COUGAR HALF-TON 22MLS","description":"2026 Keystone RV Cougar Half-Ton 22MLS,

SALE! WAS $42,967 BUT NOW IS ON SALE FOR $39,999 THROUGH 7-31-26!

INCLUDES 2 RV DEEP CYCLE BATTERIES-UPGRADE TO TWO BATTLE BORN INTELLIGENT HEATED LITHIUM 100 AMP BATTERIES WITH THE SMART HUB MONITOR FOR $2,499!

This Keystone Cougar Half-Ton travel trailer 22MLS includes these options:

Umber Luxe Interior
2 RV Deep Cycle Batteries-Lithium Upgrade Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
- 24/7 Tech Assistance
- 10% Parts Discount At All Route 66 Locations
- 10% Camping Discount At KOA
- Upgrade To The RV Club Unlimited For Only $219.95!
Electric Stabilizer Jacks
Solar Flex Protect 220 Watt Expandable Solar System
12 Volt 10 Cubic Foot Fridge
Professional Grade Camping Package
Towing With Confidence Package Plus ABS
Cougar Innovation Package
Climate Guard Protection Package
King-Size Bed
Theater Seating
Booth Dinette
Large Slide
Pass-Through Storage

The Keystone Cougar Half-Ton fifth wheel and travel trailers are known as one of America's favorites for a reason! Some of those reasons are the exclusive features that come from Keystone, like the Winegard Air 360+ omni-directional rooftop antenna, the in-floor heating ducts, and the HyperCore composite wall construction with Vixen Fibrogloss high-gloss finish. The Cougar Half-Ton has a Climate Guard protection package with heat-deflecting white sidewalls, two roof attic vents, PEX plumbing and more to enjoy four season camping. Inside, you'll love the dimmable lighting, night roller shades throughout, shower skylight, and bedside USB outlets to keep your electronics charged.

","itemCondition":"Used","priceCurrency":"USD","price":"39999.00"}}]}}

D&D RV Center

Keystone COUGAR HALF-TON Travel Trailers for sale