The PBB-30 is an insulated barrier bag that measures 28 inches wide, 24 inches high, and 6 inches deep. Protecting the backflow device from frost, the Polar Bearier bag provides an R-30 insulation rating using Radiant Barrier Foil (RBF) inserted between acrylic polyester and air bubble pack. The PBB-30 is compatible with the SBBC-30AL, SBBC-30ALI (included), SBBC-30SS, SBBC-30CR, BC-30CR enclosures.
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