Description

Used 2022 Keystone RV Alpine 3700FL Fifth Wheel – Specifications, Features & Floorplan

The 2022 Keystone RV Alpine 3700FL is a luxury fifth wheel designed for extended stays and full-time RV living. With a front living layout, bath and a half, kitchen island, and king bedroom suite, this model delivers residential comfort, premium construction, and four-season capability.

2022 Keystone Alpine 3700FL Specifications

First, this fifth wheel sleeps 6, making it suitable for families or guests.
Additionally, 5 slides expand the living space for added comfort.
Overall, the 41 ft 6 in length provides a spacious residential layout.
Meanwhile, the 8 ft 4 in exterior width allows for generous interior room.
Finally, the 13 ft 4 in exterior height supports tall ceilings and large windows.

Weights for Used 2022 Keystone RV Alpine

To begin with, the 2,775 lb hitch weight ensures a stable towing connection.
In comparison, the 13,944 lb dry weight reflects the unit’s solid construction.
Furthermore, a 2,556 lb cargo capacity allows you to pack essential gear.
Equally important, the 7,000 lb axle weight enhances road stability.
Lastly, the dual-axle configuration improves overall towing performance.

Capacities

For extended trips, the 54-gallon fresh water capacity supports daily use.
At the same time, the 78-gallon grey water tank reduces dump frequency.
Likewise, the 78-gallon black water capacity adds convenience when camping.
In addition, two 30 lb LP tanks provide ample propane for appliances.

Utilities & Systems

To power everything efficiently, the unit includes 50-amp electrical service.
For colder conditions, a 40,000 BTU furnace delivers consistent heat.
Meanwhile, 30,000 BTU of air conditioning keeps the interior comfortable in warm weather.
For convenience, an on-demand water heater provides hot water when needed.
Finally, washer/dryer capability adds flexibility for long-term stays.

Tires

For durability and safety, the fifth wheel rides on ST235/80R16G tires, designed for heavy-duty performance.

Sleeping & Interior Features

At the rear, the king bed offers a comfortable and spacious sleeping area.
Up front, a front living area creates a dedicated space for relaxation.
Additionally, opposing tri-fold sofa sleeper slides provide extra sleeping options.
For premium comfort, Thomas Payne theater seating includes heat, massage, LED lighting, and USB charging.
To enhance the atmosphere, high ceilings and panoramic frameless windows bring in natural light.

Kitchen & Dining

At the center, a kitchen island adds prep space and storage.
For cooking, a three-burner cooktop supports everyday meals.
Above, a convection microwave/oven expands cooking versatility.
Meanwhile, an 18 cu. ft. gas/electric refrigerator offers residential-style storage.
For dining, a free-standing table with chairs provides flexibility.
Additionally, solid-surface countertops enhance durability and appearance.
Finally, a stainless steel dual-bowl sink simplifies cleanup.

Bathroom Configuration

Designed for convenience, this floorplan features a bath and a half layout.
At the rear, the full master bathroom creates a private retreat.
In addition, a half bath near the kitchen offers easy access for guests.

Bath and a Half Floorplan
Full Rear Master Bathroom
Dual Sink Vanity
Shower with Seat
Porcelain Foot-Flush Toilet
Washer/Dryer Prep

Living & Entertainment

First, enjoy a 50″ LED TV in the living room, ideal for movie nights or entertaining guests.
Additionally, a TV in the bedroom provides private viewing comfort.
Meanwhile, the 40″ fireplace with 5,000 BTU of electric heat adds warmth and ambiance during cooler evenings.
For added convenience, a central vacuum system makes cleaning quick and effortless.
Finally, day/night roller shades allow you to easily control privacy and natural light throughout the coach.

Exterior Highlights

To begin with, heated basement storage keeps your gear protected in colder conditions.
Furthermore, Hitch Vision™ with LED lighting improves visibility during hitching and nighttime setup.
In addition, the Road Armor™ shock absorbing hitch pin helps reduce towing stress and vibration.
For outdoor comfort, Carefree power awnings (14′ & 14′) provide generous shade at the push of a button.
Equally important, the one-touch 6-point hydraulic leveling system ensures fast and stable campsite setup.
Moreover, heavy-duty G-rated tires deliver durability and confidence on the road.
Looking ahead, solar prep allows for easy future upgrades.
For added safety, back-up and side camera prep enhances maneuverability.
Lastly, an outside shower with hot and cold water adds convenience after outdoor activities.

Construction & Build Quality

At the foundation, the 100″ wide-body construction creates a spacious residential feel.
Supporting this, a 12″ I-beam frame provides strength and long-term durability.
In addition, laminated sidewalls with double-welded aluminum improve insulation and structural integrity.
Above, the walkable roof with Alpha Super Flex TPO membrane offers durability and long-term protection.
Furthermore, Tru-Fit™ slide construction reduces wear while enhancing leak resistance.
To improve comfort, in-floor heating ducts distribute heat efficiently without sacrificing storage space.
Finally, color-coded unified wiring simplifies maintenance and troubleshooting.

Climate & Weather Protection

Designed for year-round use, Polar Pack four-season protection supports camping in a wide range of climates.
Additionally, a heated and enclosed underbelly helps protect vital components in cold weather.
For extra protection, 12V heat pads on tanks help prevent freezing.
During warmer months, dual Quiet Cool A/C units maintain a comfortable interior temperature.
To complete the system, a fully programmable dual-zone thermostat allows precise climate control throughout the RV.

Safety Features

For peace of mind, a carbon monoxide detector continuously monitors air quality.
Likewise, a smoke detector provides early warning in case of fire.
In addition, a propane gas leak detector enhances onboard safety.
Moreover, GFI receptacles protect electrical systems in wet areas.
For emergencies, a fire extinguisher is easily accessible.
Finally, a breakaway switch adds an essential layer of towing safety.

Keystone Alpine 3700FL Luxury Highlights

Luxury comes standard, not optional, in the Keystone Alpine 3700FL fifth wheel. With nearly 7-foot-tall slides, high ceilings, and a spacious front living room, this RV delivers a true residential feel. The rear master suite includes a king bed with underbed storage, a private bath with dual sinks, and washer/dryer prep—perfect for long-term stays or full-time RV living.

Why Choose the 2022 Keystone RV Alpine 3700FL?

Ideal for full-time RV living
Spacious front living floorplan
Bath and a half convenience
Premium four-season capability
Trusted Keystone RV build quality

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For complete factory details, view the Keystone Alpine 3700FL fifth wheel specifications directly from Keystone RV.

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