
Boiler Safety Valve M19 x 1.5 Thread
M19 x 1.5. The outside diameter of the male threads on this valve measure 19 mm where the standard 3/8" valve measures 16 mm, so it's larger than 3/8" but smaller than 1/2".
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Product Information
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Shipping & Returns
Description
M19 x 1.5. The outside diameter of the male threads on this valve measure 19 mm where the standard 3/8" valve measures 16 mm, so it's larger than 3/8" but smaller than 1/2".














