This professional-grade water pressure switch is specifically engineered for Pentair pool and spa heaters, providing the critical safety monitoring that pool service contractors depend on. Compatible with MasterTemp and Max-E-Therm models (200-400 heaters) and ETi 400 High Efficiency Heaters, this OEM replacement ensures reliable operation and prevents costly heater damage from low water flow conditions.

Commercial Service Benefits

Reduce service callbacks and protect your reputation with this precision-engineered pressure switch that automatically shuts down the burner when water flow is restricted. The adjustable pressure setting (0.2 bar factory default) allows contractors to optimize performance for deck-level, above-pool, or below-pool installations using the convenient star-wheel adjustment.

Why Pool Contractors Choose MT Pools

Our superior customer service and B2B wholesale pricing structure support your profit margins while ensuring you have the critical replacement parts needed to keep client heaters operational. With daily recurring customer support, MT Pools is your trusted partner for professional pool equipment needs.

Frequently Asked Questions

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Keep your service operations running smoothly with reliable OEM replacement parts from MT Pools. Our wholesale pricing and expert support help pool contractors maintain profitability while delivering exceptional service to their clients.