Cheap Covers Don't Last... Our Covers Last Years Longer! Operate Your Hot Tub for Less with Solis Technology!

Big Holiday Spa Cover Sale. $299 Free Delivery!

Heavy Duty 4" Thick Covers
Great for Moderate Climates 
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Heavy Duty 4 Inch Tick Spa Covers $299, Free Shipping!

Buy Now Heavy Duty Covers $299!

Buy with Confidence, We are the Manufacturer!

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?  
FREE Delivery - Hot Tub Covers in 10 Days!*
*Orders are shipped in approx. 10 -14 business days from order date. (no weekends or holidays). Online pricing and warranties are for covers 96" and less.

Heavy Duty Hot Tub Cover $299 Free Delivery!

Got Questions?
Not Sure about Measurements?
We have over 6000 Cover Specifications!
Call Our Friendly Experts Now!

Buy 4 Inch Covers Now $299!

Get a Better Cover for Less!

Enter SUPER20 for $20 Off!


We are not JUST a database of sizes, we are real people with 26 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.

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

Need a Thicker Cover with Better Insulation?
Check out our Premium Cover Models:


6 to 4 Thick Covers $399 Free Shipping!

6 to 4 Elite Covers $479 Free Shipping!

Reasons to Buy a Solis Spa Cover

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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.

*Above pricing applies to covers 6 to 4" covers 96" and less 1.5 Lb. density. Typical delivery approx. 14 days.
* $20 Off Excludes Cover Lifts and Cover Protectors. 


Buy Now Heavy Duty Covers $299!