Replacement Diaphram for Zodiac G2 and Alpha Pool Cleaners

The Replacement Diaphragm for Zodiac G2 and Alpha (Part #G211255-3) is the single most important moving part of your suction-side pool cleaner. This flexible tube expands and contracts to create the "pulsing" water flow that drives the cleaner across the pool floor and up the walls.

Because the diaphragm is the only moving part, it bears all the mechanical stress of operation. Over time, debris like small pebbles or sticks, as well as high chlorine levels, can cause the rubber to tear or become rigid. If your cleaner has stopped moving or is moving sluggishly despite good pump suction, a torn diaphragm is almost always the cause.