GuardShack FrostGuard R-13 Insulated Blanket for GS-4/CGS-4/BP-4 (27-1/2 ft. H x 46 ft. L) Green

The GuardShack Insulated Blanket 8 in. x 27.5 in. x 46 in. protects backflow assembly from unexpected cold snaps for enhanced durability. Thanks to its compressed fiberglass insulation, this blanket provides optimum protection from frost. The outer layer of the blanket is made from 14 oz. vinyl that resists water, mold, mildew, and fire to ensure reliable use. With the help of the reinforced grommet, you can securely seal the blanket on the assembly for ensured defense.