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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
inflation valves for larger sizes and reinforced ropeholds for long-term durability
Box Dimensions: 5"H x 7"W x 19"L WT: 0
abrasive-resistant blend of polymers and urethanes achieve optimal durability and pliability
3 or 4 stage charging with Equalization (must be manually initiated)
Housing Material: Black Die–cast Aluminum Housing
GROCO Backing Block f/3/4" 1" Seacocks [BB-1] Automotive/RV | Accessories inflation valves for larger sizesBacking Block for 3 4" & 1" Seacocks Features: Each size fits multiple seacock sizes Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange Rigid 1 2" thickness provides secure installation but is flexible enough to conform to minor hull curvature Will not swell or absorb moisture Made from an environmentally friendly PVC foam specially formulated for marine applications Specifications: