FrostGuard™ Insulated Blankets
If an unexpected freeze occurs and you have not winterized your backflow you could have costly repairs on your hands. Protect your backflow assembly year round from sudden cold snaps that can occur in early winter or late spring with our FrostGuard™ Insulated blankets. They will blend into your landscape better and offer superior protection to unsightly burlap wrap.

Install the FrostGuard Blanket easily by just slipping it over the assembly; with 9 standard sizes that cover most 1/2" to 8" inline assemblies. They come in 2 choices of industrial grade, resilient, crushable, compressed fiberglass insulation, R-13 or R-30. Our rugged blankets are double stitched and the seams are heat treatred to ensure a solid bond. The heavy 14 oz water repellent vinyl fabric used is UV & mildew resistant and fire retardant to meet NFPA-701 / ASTM E-84. They can be left on year-round for your convenience.

Reinforced grommets on the bottom seams are standard and allow a padlock to be used to lock your FrostGuard in place. Any RP relief valve discharge is unobstructed, even when bottom seams are padlocked together for best insulation protection.

These blankets fit inside of our standard cages & are available in Forest Green or Woodland Tan to compliment your landscaping.

Some cheaper blankets from the competition will quickly begin to decompose in the sun. Our blankets will last season after season.

Small Diameter Sizes

FrostGuard Insulated Blankets come in 5 standard sizes to accommodate most 2" diameter and under backflow assemblies.

Large Diameter Sizes

We offer 4 sizes of standard Large Diameter backflow covers. The "UN" Models have Velcro slots on the top to accommodate OSY Gate Valve Stems and keep them visible for the fire departments. Custom Size are also available please fill out quote request below, or call us.
If you need a blanket with unique dimensions, color of fabric, or special openings, we can build you a custom to fit your specific needs. Contact us for a quote.


Standard Colors
Standard colors are in high gloss Woodland Tan & Forest Green which were selected to blend into most any landscaping.
  • Forest Green
  • Tan

Free Online Quote

Sometimes there is no such thing as a standard backflow assembly install. If our standard sizes do not fit your needs we can build you a custom size or featured FrostGuard Blanket. You can use the form below and we will get back to you with a quote.
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General information about your project such as: Make/Model/Size of your backflow device.
What are the dimensions of your asset? (If you don't know right now, that's okay!)
If you have a distributor, what is their contact information?
How many inches in 6 feet?
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