The PBB-20HP is an insulated barrier bag that measures 24 inches wide, 46 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-20HP is compatible with the SBBC-20SS enclosure.
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