![Lochinvar Water Pressure Switch Kit [EnergyRite Heater] (100166256) harwil Val-Pak 1-1/2 inch MPT spring](https://cdn.shopify.com/s/files/1/1751/9347/files/47-203-1142_XL.jpg?v=1777517245)
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Lochinvar Water Pressure Switch Kit [EnergyRite Heater] (100166256) harwil Val Pak 1 1 2 inch MPT spring Val Pak 1 1 2 inch MPT spring return line check valve This version is especially practical when the system already uses a 2 inch threaded layout and you want to avoid introducing a different plumbing style during replacement supporting safer heater operation and more dependable system performance Supports cleaner and more dependable heater performance
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