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Backflow Freeze Bags

Backflow freeze bags by Sub Zero Covers — made in the USA. Protect your backflow preventer assembly from freezing temperatures with heavy-duty insulated freeze bags manufactured by Sub Zero Covers. Every bag is built with weather-resistant, insulated materials designed to hold up to harsh winter conditions season after season.

1 products
Made in USAby Sub Zero Covers
Authorized dealerSub Zero Covers
Standard sizes stockedCustom sizes to order
Ships fastFrom Rocklin, CA

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About Backflow Freeze Bags

Backflow freeze bags by Sub Zero Covers — made in the USA.

Protect your backflow preventer assembly from freezing temperatures with heavy-duty insulated freeze bags manufactured by Sub Zero Covers. Every bag is built with weather-resistant, insulated materials designed to hold up to harsh winter conditions season after season.

Standard sizes for 1/2" to 2" devices are stocked in our Rocklin, California warehouse and ready to ship. Custom sizes for larger or non-standard assemblies are made to order — send us your device's brand, model and size and we'll quote the right fit.

Why buy your freeze bags from The Backflow Depot?

  • Authorized Sub Zero Covers dealer — genuine Sub Zero Covers bags
  • Made in the USA by Sub Zero Covers
  • Standard sizes in stock — ships fast from Rocklin, CA, or pick up locally
  • Custom sizing help — call (916) 251-7071 for non-standard assemblies
  • Easy installation — slides over your assembly in minutes, no tools required
  • Reusable — built to last multiple seasons with proper care
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