Heavy Duty 4" Thick Cover $299!
Great for Moderate Climates 

The 4 to 2" Heavy Duty spa cover is a perfect solution for the spa owner on a budget. The Heavy Duty cover model is also known as the OEM replacement spa cover. Our Heavy Duty model features a 1.5 Density Core (beware of 1.0 Lb and recycled foam which will break easily), an insulation rating exceeding R-15, a 20 gauge galvanized steel c-channel in each half for added strength and a 6 mil vapor seal resistant to chlorine and bromine. Includes our 5 year non-prorated warranty, one of the best in the industry!
Is Your Spa Cover Saving You Money?  


Heavy Duty Foam Core 4" Sloaped.
Load Rating = GOOD

Buy Your Spa Cover Now!

Solis Spa Covers Stay Lightweight & Save Energy! Operate Your Hot Tub for Less with Solis Technology!

Built in Value!

Heavy Duty 4 to 2 Cover Model $309 Details.

All Solis Spa Covers are made is Tampa, Florida USA!

Hot Tub Covers in 10 Days + FREE Delivery!
*Orders are shipped in approx. 10 business days from order date.
(no weekends or holidays)

Solis Spa Covers is America's Trusted Spa Cover Manufacturer for over 25 Years!


6 to 4 Thick Covers $399 Free Shipping!

6 to 4 Elite Covers $479 Free Shipping!

Spring Hot Tub Cover Sale Take $10 Off Any Cover! Enter SPRING10 at Checkout.

Enter Code SPRING10 at Checkout for $10 Off Any Cover!

Heavy Duty Cover $299 Free Shipping - Buy Now!

Got Questions?
Not Sure about Measurements?
We have over 6000 Cover Specifications!
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Free Shipping on Any Spa Cover Order!

Free Home Delivery to Most Addresses in the Lower 48!

Heavy Duty Cover $299 Free Shipping - Buy Now!

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Reasons to Buy a Solis Spa Cover


DuraLast Spa Cover Hot Tub Cover Protectors, $139 Custom Made to Fit!! Spa Cover Caps. Hot Tub Cover Caps Free Delivery!

Spring Spa Cover Sale. $299 Free Delivery!

Need it FAST? Select Expedited Processing and your order ships in 48 or less! (Monday - Thursday, No Weekends or Holidays). 
  • 2 lb. Density Foam Core Upgrade +$40 (increases insulation w/o the extra bulk of a thicker cover)

  • Double Vapor Barrier +$25 (warranties the foam core against saturation for 5 years) Double the Protection with our Clear Guard System!  

  • Full Length Hinge Seal +$25, Adds Continuous Insulation Down the Hinge Area of the Spa Cover (up to $600 in Energy Savings per Year!)

  • Split Flap +$20.

  • Overlapping Flap at Hinge +$15 - Enhances Heat Retention!

  • Cover Lift System - Cover Rock ItTM +$129 or The Cover CaddyTM +$169.

  • Cover Protector +$139 - Shields your spa cover from the effects of weather. Don't let sun, rain or snow damage your expensive investment. Helps prevent sun and inclement weather from attacking your spa's cover and cabinet. Keeps your spa cabinet looking great and extends the life of your cover by many years. Custom made to fit your new spa cover or your existing cover. 12 designer colors.

  • Expedited Processing +$75 Orders ship in 48 hours Monday thru Friday and deliver in 2 to 7 days.



We are not JUST a database of sizes, we are real people with over 25 years experience in the industry!  

Our step-by-step ordering process means you can easily order the perfect replacement spa cover for any spa brand, in just minutes.