NIBCO 3/4 in. Galvanized Steel & Forged DZR Brass Press x FIP with Nylon Insulator Ring Union Fitting

NIBCO's dielectric union has hi-flow alternative for filling, draining or venting closed-loop hydronic systems. Each union end connects to the corresponding pipe of a compatible metal. The insulator ring stops the electric flow that occurs when two dissimilar metals are joined. The joint can also be removed for applications that require future removal or maintenance of the pipes. Install anywhere a drain or purge valve is required.|Designed For Use With Residential Or Commercial Systems|Models Available To Satisfy All State and Federal Low-Lead Laws|IAPMO 5258 / 6227 / 9131 / 9951|Size Range 1/2" to 2"|For Use With: Water, Oil, Glycol Mix|Use In Plumbing or Heating Applications|Made With Lead Free Dezincified Brass|Certified to NSF/ANSI 61 & 372