1/2 in. Galvanized Steel FIP x Sweat Dielectric Union
Everbilt. $7.99. In stock.
Dielectric unions are used to join pipes made from dissimilar metals to avoid electrolysis, which leads to corrosion and pipe failure. This union is made from galvanized steel and lead-free brass. Plumbing codes in all states require the use of dielectric unions when connecting dissimilar metals.
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