Attwood Marine 3875A1 1-1/2" Thru-Hull Connector Black Polypropylene

The Attwood Marine 3875A1 is a straight thru-hull connector designed for above-waterline marine plumbing applications. This durable polypropylene fitting provides a reliable connection point for 1-1/2 inch hoses, making it ideal for bilge pump discharge, livewell systems, cockpit drains, and other onboard water management systems.

Key Features:

• Fits 1-1/2 inch (1.5") inside diameter marine hose
• 3-1/2 inch stem length for secure installation
• Accommodates maximum hull thickness of 1-1/4 inches
• 3 inch flange diameter for stable mounting
• Requires 1-7/8 to 2 inch installation hole
• Durable polypropylene construction resists corrosion and electrolysis
• Black finish for discreet appearance
• Includes drain plug for secure closure

Constructed from high-impact polypropylene, this thru-hull connector will not rust, corrode, or contribute to galvanic corrosion on your vessel. The thermoplastic design eliminates hull streaking and allows for countersinking where appropriate. Attwood Marine's thru-hull fittings are engineered for reliable performance in harsh marine environments and meet industry safety standards.

Important: This plastic thru-hull connector is designed for installation above the waterline only. For below-waterline applications, a bronze or stainless steel thru-hull fitting is required.