1-1/4" x 3/4" Copper Monoflo Tee Zoom

1-1/4" x 3/4" Copper Monoflo Tee


Brand: Legend Valve

Legend Valve
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/ each
Non-Stock ItemAllow 7-10 Days to Ship Out



Size: 1-1/4" x 3/4"
Material: Copper
Application: Heating
Connection Type: Sweat

Description for Legend Valve MONOFLO1-1/4X3/4

1-1/4" x 3/4" Copper Monoflo Tee

1-1/4" x 3/4" Copper Monoflo Tee


by PowerReviews
Legend Valve3/4" x 1/2" Copper Monoflo Tee

(based on 2 reviews)

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Reviewed by 2 customers

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By Master PLumber

from Maryland

Verified Buyer

Comments about 3/4" x 1/2" Copper Monoflo Tee:

This tee is a diverter tee not a true monoflo tee with a cone venturi. It has a brass wedge baffle across the top just passed the throat of the 1/2" branch. It is not uni-directional it can only be installed on the feed side of the line. It is NOT an alternative to the B&G copper Monoflo tee. That has a flow reducing cone that is uni-directional and works on the Venturi priciple.


It does the job it is designed to do!

By John the Plumber

from Nantucket Mass

Verified Buyer



      Best Uses

        Comments about 3/4" x 1/2" Copper Monoflo Tee:

        If you are adding a kick-space heater or a cast iron radiator onto an existing zone of heat in an area with limited or no wall space for baseboard the monoflo tee is essential.

        • Primary use:
        • Business

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        1 Question | 3 Answers
        Displaying question 1
        • 3/4" x 1/2" Copper Monoflo Tee


          when would someone use this tee verses a CCC lightweight tee for $1.50?
          Asked on 4/16/2011 by miki from Columbus, OH

          3 answers

          • CUSTOMER CARE


            This tee would be needed in systems with monoflo pipe designs.

            Answered on 4/18/2011 by PexSupply Staff from NY
          • A:

            Mono-flo or one pipe hydronic heating systems were first commercially introduced by Bell & Grossett in the 20's or 30's. They are one of the simplest heating systems developed. The Mono-Flo tee has a partial restriction along the main direction of the tee. This restriction provides the pressure to move heating fluid into the branch line servicing a baseboard unit or radiator. The rest of the fluid flows on through on the main line. After flowing through the radiator the fluid is returned to the main line through another tee and onto the next in the system. The entire main line is one continuous loop both supplying heated fluid from and returning to the heat generator (boiler). Bell & Grossett's web site explains all of this.

            Answered on 6/13/2011 by jc from Montrose, Colorado
          • A:

            this tee splits the flow thru the 3/4 inlet up the 1/2 and 3/4 outlet...it is MONO (single) FLO (direction) for baseboard heat systems. it has a vane cast inside the tee. be sure and check direction when installing
            mark plum

            Answered on 11/30/2013 by woodman from maryland
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