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FW-4 Standard RO Membrane Housing Wrench


Free Shipping on all orders over $45

The FW-4 Wrench can be use to loosen standard 2x12 membrane housings when changing membranes. This FW-4 wrench fits many Hydronix, Pentek, Culligan, Ametek, American Plumber, and USFilter Plymouth Reverse Osmosis membrane housings.