Copper Red Ring Monoflo Fittings let you use a single pipe to serve as both supply and return main.
Features and Benefits
Connect risers to the main, assuring proper division of water to each heating unit regardless of type and its position in the system.
Recommended for most installations including cast iron non-ferrous baseboards, free-standing radiation or convectors.
Only one fitting is needed for most installations for adequate diversion for upfeed radiation. For most applications, a second fitting can be used if higher resistance is required.