Bell & Gossett Red Ring Monoflo® 108119 Ring Monoflo, 3/4 x 1/2 in, 150 psi, Copper
Bell & Gossett Red Ring Monoflo® Ring Monoflo, 3/4 x 1/2 in Nominal Size, 150 psi, 300 deg F, Copper, Red
Copper Red Ring Monoflo Fittings let you use a single pipe to serve as both supply and return main.