2 Pack, Water Heater Dielectric Nipple, 3/4" Male Pipe Thread x 3/4" Male Pipe Thread x 2 1/2" Male Iron Pipe Length, For Water Heater Inlet & Outlet Hook Ups & Other Uses Where Dissimilar Metals Occur In Piping & Plumbing Systems, Thermoplastic Lining Prevents Corrosion.
