Pentair ETi 250/400 Pressure Relief Valve (475618) sgsinstruments this electrode assembly helps restore

this electrode assembly helps restore dependable internal function and supports a more confidence-inspiring sanitation-system repair overall

J-style round design

responds inconsistently

Replacement lids are especially practical when the original cover has become brittle

Pentair ETi 250/400 Pressure Relief Valve (475618) sgsinstruments this electrode assembly helps restoreUsing 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