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Durable Construction: Built to withstand the high-cycle environments of modern high-efficiency heating systems
Look for "hissing" at the actuator housing or a damper that fails to reach its full stroke despite receiving full signal pressure
refer to the manufacturer’s dosage chart
Always check the rating plate on your water heater
Johnson Controls P233A-4-AHC Pressure Switch 319848-301 Durable Construction: Built to withstandJohnson Controls P233A 4 AHC Differential Pressure Switch, 0 5 Mbar to 4 Mbar Range, < 0. 3 Mbar Differential, SPDT
US$ 39.95
US$ 59.99
US$ 197.50
US$ 225.00
US$ 59.99
