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Custom Spa Covers

Made to Fit.

Built to Last.

Custom spa covers

Made to Fit.

Built to Last.

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Swift-river & Hot Tub Covers

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Swift River Hermosa/HE351RMD Spa Cover

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Swift River Monarch/MO35SRMD Spa Cover

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Swift River Redondo/RE351RNDS Spa Cover

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Spa Covers Starting at $454.00

Industry Leading Warranty

Top Rated Energy Saving Insulation

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Three Models, Each Matched by Name and Code

Swift River keeps its lineup small but precise - the Hermosa (HE351RMD), Monarch (MO35SRMD), and Redondo (RE351RNDS), each with its own model code stamped on the spa itself. A Swift River spa cover from us is matched to whichever of these three you own, using manufacturer-verified dimensions on file for that exact model and code. If you're not sure which one you have, checking your spa's spec plate for the code is usually the fastest way to confirm before ordering.

The Materials Behind a Cover That Holds Up

A Swift River hot tub cover is only as reliable as its construction. Every cover we build uses 30oz marine-grade vinyl, double-stitched seams, and YKK-style zippers, reinforced with heavy-duty handles and color-matched safety straps rated for daily sun, wind, and water exposure. That level of build quality keeps the seal tight for years, rather than sagging or cracking the way thinner, single-stitched covers often do after just a season of regular use.

Replacing a Worn Cover on Your Hermosa, Monarch, or Redondo

A cover that's heavy, waterlogged, or splitting at the seams is already letting heat escape, whether it's shown up on your energy bill yet or not. A Swift River spa cover replacement starts with confirming your model, Hermosa, Monarch, or Redondo, and we handle production from there. Every order ships free and is backed by an industry-leading warranty, so upgrading is a low-risk decision that pays off fast.