The rubber flapper opens to drain water out and closes to prevent backwash. Acetal construction. For 1 - 1/2" I.D. Hose. CAUTION: Plastic thru-hull connectors are designed for installation above the water line only. " The Rubber Flapper Opens To Drain Water Out And Closes To Prevent Backwash. Acetal Construction. For 1 - 1/2" I.D. Hose." Caution: Plastic Thru-Hull Connectors Are Designed For Installation Above The Water Line Only. Special Order Item. Minimum Order Quantity: 1
Standard delivery3-5 days, £6.99
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