Copper Red Ring Monoflo Fittings let you use a single pipe to serve as both supply and return main.
Reviewed by 2 customers
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Comments about 1" x 3/4" Copper Red Ring Monoflo Tee:
These tees are far superior to the scoop type tees that some places are trying to pass off as monoflow tees. If you are installing radiators below the main don't even consider another type tee. More expensive but worth it.
Comments about 3/4" x 1/2" Copper Red Ring Monoflo Tee:
I wanted to add under floor radiant heat in our master bath using the Ultra-Fin system. The entire master bedroom bath was on one zone. I used two 3/4" x 1/2" monoflo fittings(one supply fitting and one return fitting) on the bedroom/bath zone to push water through the under floor 1/2" pex loop with no problem getting enough flow to purge air in the system despite being told it would not work. The under floor pex loop was 95' long with plenty of flow using two monoflo fittings.