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Add to CartUse the Groco Seacock Backing Block to improve flanged seacock installation. Groco backing blocks are made from an environmentally-friendly PVC foam specially formulated for marine applications. The rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature. To install, press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange.
Specifications:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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Groco FBV Series Tri-Flanged Ball Type Seacock Groco FBV Series Ball-Type Seacocks are manufactured for full flow and feature a triangular base. The patented field reversible handle allows you...
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Groco IBV Series Full-Flow Flanged In-line Ball Valve The Groco IVB Series In-Line Ball Valves are full-flow valves with a patented selectable handle rotation. The handle has a square hole to accept...
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Groco Bronze Pipe Nipple Groco's PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers, and...
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Groco TH Series Standard Length Bronze Thru Hull w/ Nut Groco TH Series Thru Hulls are constructed of C83600 bronze and feature a NPSM / NPT combination thread. These thru hulls are available in a...
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Groco Pipe to Hose Bronze Fitting Groco bronze Pipe to hose fitting. Standard Flow - the hose ID is the same as the pipe size (ie: PTH-750 has 3/4" NPT pipe thread and accepts 3/4" ID hose)...
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Groco Bronze Hose Thru-Hull Fitting Groco bronze thru-hull fittings are constructed of durable C83600 bronze and are available in a range of sizes. NPS thread with hose connection UL...
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Groco Hi-Speed Strainer with Nut The Groco Hi-Speed Strainer is a NPT combo scoop thru hull that is designed for increased flow compared to standard thru hulls. This strainer is constructed of...
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Groco HVL Bronze Vented Loop for Hose Connections The Groco HVL Vented Loop allows air to enter to break siphon, but does not permit air and odors to escape. This series of vented loops assures...
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