SEAFLO Manual Diaphragm Bilge Pump — 2-Position, Aluminum Handle, 1.36" Hose, Lightweight Durable (4-Year Warranty)

The SEAFLO 2-position diaphragm hand bilge pump is a lightweight, durable manual pump that mounts to bulkhead or deck and clears bilge water quickly with an easy lever action.

Designed for small to medium-sized boats, this manual bilge pump combines a two-position diaphragm mechanism with a robust aluminum handle for efficient, dependable water removal during routine use or emergencies. The pump accepts standard 1.36-inch hoses and offers simple maintenance access so debris can be cleared without tools. Backed by a four-year warranty, it balances performance, corrosion resistance, and user-friendly serviceability for recreational and workboats alike.

How does the two-position diaphragm design improve pumping performance?

The dual-position diaphragm gives you a positive displacement action that moves water quickly with each lever stroke while reducing backflow. This design creates reliable suction and discharge cycles that make pumping faster and less tiring compared with basic piston pumps. It also tolerates small debris better, helping keep bilge outlets clear during operation.

• Two-position diaphragm for stronger suction and higher flow per stroke
• Consistent discharge with reduced backflow
• Handles small debris without frequent clogging
• Efficient lever action minimizes operator fatigue

How easy is the SEAFLO pump to mount and connect to existing bilge systems?

The pump is built for flexible mounting on either a bulkhead or deck, so you can place it where it’s most accessible in your boat. Standard 1.36-inch hose fittings let you tie into common marine hose sizes with minimal adapters. Fast-access diaphragm housing simplifies routine checks and cleaning after installation.

• Bulkhead- or deck-mountable for installation flexibility
• 1.36" hose connections match standard marine tubing
• Quick-access diaphragm cover for easy maintenance
• Compact footprint fits tight bilge spaces

What materials and build features make this pump durable for marine use?

SEAFLO pairs a corrosion-resistant aluminum handle with a rugged diaphragm assembly designed for repeated cycles in wet environments. The lightweight aluminum reduces operator strain while maintaining strength under load. High-quality seals and straightforward construction reduce wear points and make on-boat servicing simple.

• Aluminum handle for strength and light weight
• Resilient diaphragm materials formulated for marine conditions
• Sturdy fittings that resist corrosion and fatigue
• Designed for easy part access and replacement

What level of support and warranty does SEAFLO provide?

This pump comes with a four-year warranty that covers manufacturing defects and gives owners extended protection beyond typical consumer guarantees. SEAFLO’s support resources include parts information and maintenance guidance to keep the unit operational season after season. Having a warranty also simplifies peace-of-mind ownership for boaters who rely on manual bilge backup.

• 4-year limited warranty on manufacturing defects
• Accessible parts and maintenance documentation
• Long coverage period compared to many manual pumps
• Customer support available for installation questions

Who is this for: The SEAFLO 2-position diaphragm hand bilge pump is ideal for recreational boat owners, anglers, small commercial skiffs, and sailboats that need a dependable manual backup or primary bilge solution. If you want an easy-to-install pump with straightforward maintenance, a lightweight aluminum handle for comfortable operation, and compatibility with standard 1.36" hoses, this unit fits well. It’s especially suited to boaters who value a compact, resilient manual pump backed by an extended warranty for ongoing confidence on the water.