Double-Ended Thru-Hull Connector - (Skin Pack)-For 3/4 inch I.D. hose. Double-ended thru-hull provides secure, watertight transition through bulkheads or tanks. High-impact plastic construction. Maximum bulkhead thickness: 1-1/8 inch. Overall length: 5 inch. Installation hole size: 1-1/8 inch diamet...

THRU-HULL CONNECTORS are made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lbs. Series 250, 251 and 253. Model CF-251 Head Mushroom Thread Size 1-1/2 inch Length 3