Pentair ETi 250/400 Pressure Relief Valve (475618) lamotte and PA50SV references

and PA50SV references

This replacement is especially useful when the original trim plate is cracked

Supports safer and more predictable heater operation

The 009837 is a practical service part when a compatible Raypak heater needs an outdoor stack assembly to restore dependable venting support

Pentair ETi 250/400 Pressure Relief Valve (475618) lamotte and PA50SV referencesUsing 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