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Back-mount design with 2 inch face
Replacement lids are especially practical when the original cover has become brittle
Whether the pump is being serviced
J-style round design
responds inconsistently
Pentair ETi 250/400 Pressure Relief Valve (475618) sgsinstruments Back-mount design with 2 inchUsing the right replacement part matters during pool and spa service. Pentair ETi 250 400 Pressure Relief Valve (475618) supports a focused repair where fit, function, and reliability are important. A proper pressure relief valve is a critical safety and service component on ETi 250 and ETi 400 heater systems, helping relieve excess pressure during operation. It is useful when the existing component shows wear, damage, age related failure, or
