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Thermo Shield Spa Covers: Most Durable & Best-Insulated Hot Tub Covers you can buy. from only $450.00








  First pick your insulation thickness then SELECT.  

All Quick Spa Parts feature a unique tapered design, which maximizes heat retention, lowers operating costs and protects your spa from damaging condensation and elements. Quick Spa Parts offers three tapered spa covers:

$450 - Basic


Click Here to Select Basic!
  Thermo-Shield Spa Cover - Basic
$450
The medium density of our Basic model provides extra resistance to moisture absorption in rainy areas, plus a good load rating for seasonal climates. The higher R-value means this cover will reduce energy consumption anywhere. Better than most of the covers that come with new spas. Features Full length heat seal, Core Moisture Barrier, lock and key safety >system.

  • 1.5 lb. Aquatic Grade Core: 4">2.5" taper
  • Full length Heat Seal
  • Dual 18ga Carbon Steel C-Channel Reinforcement
  • Antaeus 2000™ Polymer Vapor Seal-6 Mil Core Moisture Barrier
  • Heavy-duty Windstraps included



  • $472 - Standard


    Click Here to Select Standard! 
      Thermo-Shield Spa Cover - Standard
    $472
    The medium density of our Standard model provides extra resistance to moisture absorption in rainy areas, plus a good load rating for seasonal climates. The higher R-value means this cover will reduce energy consumption anywhere. Better than most of the covers that come with new spas. Features Full length heat seal, Core Moisture Barrier, lock and key safety system.

  • 1.5 lb. Aquatic Grade Core: 5">3" taper
  • Full length Heat Seal
  • Dual 18ga Carbon Steel C-Channel Reinforcement
  • Antaeus 2000™ Polymer Vapor Seal-6 Mil Core Moisture Barrier
  • Heavy-duty Windstraps included



  • $516 - Deluxe


    Click Here to Select Deluxe!
      Thermo-Shield Spa Cover - Deluxe
    $516
    With our highest energy efficiency, maximum strength, load rating, and moisture resistance, plus exceptional longevity, our Deluxe is the finest replacement spa cover you can buy. It's designed to stand up to extreme weather conditions, warm or cold, rainy, snowy, or dry. Its increased strength is a big plus if you get snow . You'll save a bundle on spa heating costs in any climate. If you want a first-rate hot tub cover at a great price, the Deluxe is your best choice.

  • 2.0 lb. Aquatic Grade Core: 5">3" taper
  • Full length Heat Seal
  • Dual 18ga Carbon Steel C-Channel Reinforcement
  • Antaeus 2000™ Polymer Vapor Seal-6 Mil Core Moisture Barrier
  • Heavy-duty Windstraps included
  • Lock and Key Safety System





  • There are cheaper spa covers on the market, but we won't sell them. Why? Because we'd lose a good customer (you) after they failed in a year or two! Thermo Shield custom spa covers last years longer than ordinary spa tops. Our design is the culmination of over many years of cover crafting experience, with more satisfied online customers across America than any other.

    The most durable replacement hard cover for hot tubs, Thermo Shield covers are designed to stand up to the effects of sun, rain, or snow. You'll save more energy to achieve a lower total cost of ownership over time, than any other spa cover made. Our spa covers come with a bumper-to-bumper factory warranty for your peace of mind and are now ASTM Certified to meet critical safety standards.


    The Cal Spas' step-by-step ordering process means you can easily order the perfect replacement spa cover online, for any spa brand, in just minutes.

    See why Thermo Shield is your best buy in spa covers:

    Features
    Comparisons
    Great Color Choices
    Maximum Energy Savings
    20 Reasons to Buy
    Photo Gallery
    Frequently Asked Questions
    Print-n-Measure Sheets
    Easiest Online Ordering



    Call us with your questions,
    or to place your order:
    (800) CAL-SPAS
    Monday - Friday, 8 am - 5 pm Pacific Time



    Why your Spa Cover is Vitally Important:

    After proper sanitization and water balance, your spa cover itself is the single most critical piece of equipment to keep your hot tub water clean, and to keep your energy bill at a reasonable level. Saving money on heating costs means properly insulating your tub, and that is what good insulating spa covers achieve. Heat rises, and just like in your home, most heat loss in a hot tub goes directly up. By sitting just above the steaming water, a well-made hot tub cover provides proper insulation to help trap the heat inside. A problem that arises from all the warm water vapor is that the foam core of a spa cover can eventually become saturated, as water molecules work their way into the millions of tiny hollow spaces inside the foam. When insulating foam becomes wet, it loses almost all of its R-value. While there is no such thing as a totally waterproof hot tub cover, Thermo Shield research has developed what we believe is one of the most water-resistant cores in the spa cover industry. Our ZEROtex™ core liner is a special 6 mil thick chemical and water vapor resistant polymer barrier, with heat-welded seams. This material encapsulates the foam cores of our covers. Together with our aquatic-grade foam cores, it is one of the things that makes a long-life Thermo Shield spa cover your best choice in insulating spa covers. Our advanced and exclusive Energy Reflex option acts like a heat mirror, saving even more energy. Our marine-grade Enduratex Vinyl and SunStar Outdoor Fabric outer covers are both beautiful and ultra durable.

    Whatever brand of spa you own, Cal Spas has you covered!

    We're America's hot tub cover experts. Since 1979, we've provided top quality replacements for Jacuzzi® covers, Dimension One® spa covers, Sundance® spas, Coleman® hot tub covers, Hot Spring® spa covers, Belize™ hot tubs, Master® spas covers, LifeCast® spas, Dream Maker® spas covers, Marquis®, Vita® spa tops, LA Spas®, Cal Spas® covers and countless other spa manufacturers. We know hot tub spa covers better than anyone.

    Spa covers are custom-made to your specifications and are protected by the manufacturer's warranty, but are not returnable.

    Sorry, spa covers cannot be shipped outside the contiguous-48 USA.






    Replace your hot tub cover in 4 easy steps!