Johnson Pump Accumulator Tank - ¾" Hose Barb

The Johnson Pump Accumulator Tank with ¾" Hose Barb is a pressure-stabilizing component designed for marine water systems where smooth, consistent flow matters. Built for cruisers, fishing boats, and live-aboard vessels, this accumulator absorbs pressure spikes and surges that occur in raw water cooling loops, washdown systems, and baitwell circulation setups.

This accumulator operates by maintaining a cushion of air inside a sealed tank that compresses when pump pressure rises, then releases that stored energy to supplement flow during demand spikes. The ¾" hose barb inlet allows direct connection to standard marine hose without additional fittings, and its compact footprint fits easily into tight engine compartments or utility lockers.

At 3.1 pounds, it adds negligible weight while delivering meaningful performance—reducing noise, extending pump life by minimizing cycling frequency, and evening out pressure fluctuations that can damage delicate marine plumbing. Johnson Pump's proven engineering ensures dependable operation even in salt-air environments where corrosion resistance is essential.