100-Series Anti-Siphon Valve Diaphragm 57078

IMPORTANT - Contains 2 Different Diaphragm Designs: This kit includes TWO different diaphragm styles in one pack. You will use only ONE diaphragm - the other covers different Orbit valve models. This is intentional, not an error. Check your valve model number before purchasing to ensure compatibility.

Fix leaking or malfunctioning anti-siphon valves without replacing the entire unit. This repair kit restores your Orbit automatic sprinkler valve to proper operation at a fraction of the cost of a new valve.

Two Valve Series Covered: Diaphragm #1 fits models 57223, 57224, 57321, 57222, 57221. Diaphragm #2 fits models 57623, 57624, 57625, 57020. The designs differ - one has features for valves with flow control and angle/inline configurations, the other for valves with bleed levers.

Installation takes minutes with basic tools. Turn off water, remove valve screws and lid, swap old diaphragm for the matching new one, and reassemble. Note: If replacing the diaphragm doesn't stop leaks, other valve components may need replacement.

For outdoor irrigation use with cold water only. Maximum 125 PSI water pressure.

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