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The WEBSTONE H-42443W E-X-P Series service valve kit is a 3/4 inch FNPT Union x FNPT brass valve designed for tankless water heaters and domestic hot water output of combi boilers. It simplifies installation and maintenance, offering a maximum working pressure of 250 PSI. This valve facilitates easy system cleaning and diagnostic testing, providing a robust solution for hot water applications.
Simplifies tankless water heater installation and maintenance with fewer leak paths and easy system flushing.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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