Bath and a half, rear bath, front living, dual vanity
The Keystone Alpine 3700FL puts the living room up front where the views are, anchored by a 40" electric fireplace and Thomas Payne theater seating with built-in heat, LED lighting, and USB charging. The rear is devoted to a King bed suite with dual vanities, a full bath, and washer/dryer prep, while the half bath up front means nobody has to trek to the back mid-day. A kitchen island, solid surface countertops, residential fridge, and a legless dinette with storage round out a layout that feels genuinely livable rather than just spacious on paper. The 200 cubic feet of heated basement storage, one-touch six-point hydraulic leveling, and enclosed Nautilus water works center show that Keystone leaned hard into convenience features on this one.
Length
41 ft 5 in
Dry weight
13,793 lbs
GVWR
16,500 lbs
Sleeps
6
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
$44,989 – $97,222
This unit is ranked 2 of 15 by asking price in this group.
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2021 Keystone Alpine 3700FL
UsedStock #UDA781029
Listing price
2021 Alpine 3700FL
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
Rocky Ridge RV
Muskogee, OK
Sells faster than 83% of US RV dealers
Compared with 1,114 dealers nationwide
The 2021 Keystone Alpine 3700FL stands out with a Power Retractable Slideout and a Power Retractable Awning that expand your living space on demand. This towable floorplan offers five slideouts, a Full-Size Master Bedroom Closet, and a center kitchen with a 3-burner oven, plus a Full-Size Refrigerator, all supported by a GVWR of 16,500 pounds and a dry weight of 13,793 pounds. Experience comfortable evenings with two vinyl recliners and an Entertainment Center in a living area that flows from front to rear, while 54.0 gallons of fresh water and 78.0 gallons each of gray and black water tanks keep longer trips in mind. View the Keystone Alpine at Rocky Ridge RV.
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