New 2026 Keystone RV Alpine 3700FL

Standard Features (2026)

Exterior

• 12" I-Beam frame and 100" wide-body construction
• Road Armor™ shock absorbing hitch pin
• Hitch Vision™ w/ LED lighting
• Laminated sidewalls w/ double-welded aluminum construction and double insulated, laminated rear-end wall
• Large, tinted safety glass windows (80% tint)
• Dual pane windows (optional)
• Slide Awnings: Quads and Above (optional)
• Painted fiberglass cap w/ patented Key Shield™ protection and LED lighting
• Radius roof w/ 5" pre-engineered roof trusses and walkable rafters
• 1-piece Alpha Super Flex TPO membrane 
• Exterior ladder
• Summit slide-rooms w/ 6'10" interior height and hydraulic selector valves for slide outs
• Heated and enclosed underbelly w/ 1-piece polypropylene
• Dexter® heavy duty 7,000 lb. axles w/ Nev-R-Adjust brakes
• Road Armor™ Shock Absorbing Suspension
• Lippert TPMS prep 
• Saliun G-rated tires
• Titan: One touch, 6-point hydraulic level up system
• Super size, 6'4" tall, 30" wide entry door
• Lippert Strut Assisted SolidStep®
• 200 Cu. Ft. heated basement storage and class A style, dual latch slam doors
• Back-up and side camera prep
• Battery quick-disconnect
• Easy access Nautilus™ water works center - fully enclosed and heated
• Canister style water filtration
• Oversized 73" sewer hose carrier
• Generator prep (optional)
• 5,550 watt Cummins Onan LP gas generator (optional)
• 75 gal. fresh water, 83 gal. gray water, 49 gal. black water tanks
• 50 AMP service w/ electric power-cord reel
• Outside shower w/ hot and cold water
• Carefree power awning w/ adjustable arms
• 2” towing hitch w/ wiring harness (3,000 lbs. towing capacity)
• Blue Slate Full Body Paint (optional)
• Copper Mist Full Body Paint (optional)
• Frost Black Full Body Paint (optional)
• Keyed-A-Like™

Interior

• JBL® Aura Cube Sound System w/ exterior belly mounted speakers
• Designer Beauflor with 7 year limited Warranty
• Extra tall, 6'10" main slide height
• Hardwood slideout fascia w/ wood accent
• Day/night roller shades
• Hardwood valance with accent and custom wood window frame and window sill
• Super Sofa w/ 4 Dining Trays (optional; select models)
• Stunning solid wood cabinet doors, cabinet framing, and slide fascia
• Thomas Payne® furniture equipped w/ heat, massage, LED lights and USB charging stations in theatre seats
• Crown molding
• 40" fireplace producing 5,000 BTU of electric heat
• Central vacuum

Keystone Exclusive

• Color-coded unified wiring standard
• Winegard Air 360+ Omni-Directional Rooftop Antenna w/ exclusive satellite pass-through
• Tuf-Lok™ thermoplastic duct joiners
• KeyTV™
• In-floor heating ducts
• Tru-fit™ slide construction
• Blade Pure™ high performance air flow system with Merv-9 Filtration

Kitchen

• Solid wood cabinet doors, drawer fronts, and cabinet framing
• Stainless steel, extra deep sink w/ dual bowls and a solid surface sink cover
• High-rise, single-lever faucet w/ sprayer
• Amazing Legless Dinette Table w/ storage; and (4) high-back dinette chairs w/ storage
• Solid surface countertops

Appliances & Utilities

• (2) 30 lb. propane bottles
• Dual Quiet Cool (2) high-pressure A/Cs w/ 15,000 BTU Whisper Quiet Technology, w/ electric pump and cold air return vents (2). Rear A/C includes a 16,500 BTU heat pump.
• 3rd A/C
• 35,000 BTU gas furnace
• Fully programmable dual zone temperature control
• On-demand water heater
• Super Cinema - 50" LED TV w/ sound system (65" on 3901RK)
• 19.6 Cu. Ft.12V refrigerator (optional)
• 18 Cu. Ft. residential refrigerator
• 30" convection oven/microwave
• Insignia™ kitchen appliances
• Stackable washer/dryer prep
• Flush-style LED lighting throughout
• Interior mounted Control Panel w/ exterior mounted 3-Way Switches

Bedroom

• King bed
• (2) LED overhead reading lights
• Bedside outlets on both sides of bed
• Quilted bedspread and pillows
• TV in bedroom
• Decorative headboard

Bathroom

• Translucent glass shower enclosure w/ massaging shower head and shower skylight, and high watt shower light
• Porcelain foot-flush toilet
• Medicine cabinet
• Linen cabinet

Weather Protection

• Tested, Polar Pack protection for four-season camping and heat ducting to tanks w/12-volt heat pads

Safety

• Breakaway switch
• GFI receptacles
• Carbon monoxide detector
• Smoke detector
• Propane gas leak detector
• Fire extinguisher

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.

Due to the current environment, our features and options are subject to change due to material availability.