2023 Keystone RV Alpine 3700FL, Keystone RV Alpine fifth wheel 3700FL highlights: Underbed Storage Bath and a Half Kitchen Island Front Living Area Hitch Vision Heated Basement Storage Exterior / Structure & Safety 12-inch I-Beam frame; 100-inch wide-body construction for more internal space. Road Armor shock-absorbing hitch pin. Hitch Vision with LED lighting. Laminated sidewalls, double-welded aluminum construction, double insulated rear-end wall. Large tinted safety-glass windows (~ 80% tint). Painted fiberglass front cap with Key Shield protection & LED lighting. Radius roof with 5-inch pre-engineered roof trusses & walk-able rafters. One-piece Alpha Super Flex TPO roofing membrane. Heated and enclosed underbelly to protect tanks/piping, etc. Dexter heavy-duty 7,000-lb axles with Nev-R-Adjust brakes. Road Armor shock absorbing suspension. G-rated heavy duty tires (with long warranties). One-touch 6-point hydraulic auto leveling. Large entry door: ~ 6'4" tall × 30" wide with strut-assisted SolidStep® steps. 200 cu.ft. of heated basement storage with tie downs and slam-doors. Back-up and side camera prep. Battery quick-disconnect. Outdoor features: outside shower (hot & cold), power awning(s) with adjustable arms, power-cord reel, optional generator prep. Interior & Comfort Tall slide-outs ( Summit slide-rooms ) with ~ 6'10" interior height. Designer flooring throughout; solid wood cabinetry (doors, slide fascia, framing). Day/night roller shades and upholstered window valances. Thomas Payne® furniture: theater seats with heat, massage, LED lights, and built-in USB ports. Free standing dinette table (with storage), solid surface counters, stainless steel sink(s) with cover and sprayer. Fireplace (40-inch) with ~5,000 BTU of electric heat. Systems, Utilities & Climate Control Dual high-pressure Quiet Cool air conditioners (~15,000 BTU each), rear A/C includes a heat pump. 35,000-BTU gas furnace. Fully programmable dual-zone temperature controls. On-demand water heater. Kitchen & Appliances Residential-style 18 cu ft refrigerator (gas/electric). 30-inch convection microwave oven + range cooktop (3 burners). Bedroom & Bath Rear master suite with a king bed slide. Full bathroom with dual sink vanity, shower with seat. Half-bath (powder room) accessible from common area. Additional / Luxury / Exclusives In-floor heating ducts. Tru-Fit slide construction. Blade Pure high-performance airflow system with MERV-9 filtration. KeyTV (for media/TV integration).