Model # 3/4X1/2CST

Internet #202312920

null 3/4 in. x 1/2 in. Cast Brass Sweat Copper Monoflo Scoop Tee

3/4 in. x 1/2 in. Cast Brass Sweat Copper Monoflo Scoop Tee

$837 /each
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Frequently Bought Together

Product Overview

This is a 3/4 in. x 1/2 in. Cast Brass Sweat Copper x Sweat Copper Monoflo Scoop Tee. It is used on 3/4 in. hydronic copper tubing in heating zone systems. It is used to create flow through a 1/2 in. sub loop.

  • Quality cast brass construction
  • Popular in toe-kick heater installations
  • Creates a pressure change large enough to make the water flow up or down into the radiation and back into the main loop pipe around the basement
  • 150 psi maximum working pressure
  • For use with both fixed mount and shelf track mounting systems



Left Side Size
Product Depth (in.)
Product Height (in.)
Product Length (in.)
2.25 in
Product Width (in.)
Right Side Size


Compatible Pipe Material
Push to Connect
Fitting or Connector Type
Tee or Wye
Fitting/ Connector Collection
Left Side Connection
Copper Sweat
Maximum working pressure (psi)
Pipe or Fitting Product Type
Fittings & Connectors
Product Weight (lb.)
Right Side Connection

Warranty / Certifications

Manufacturer Warranty

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Customer Questions & Answers

can this be used on both the supply and return side or are there different tees for either side?

can this be used on both the supply and return side or are there different tees for either side?
Asked by: notenoughtime
Hi notenoughtime. The left and right hand side of this ¾ Brass Sweat Copper x Sweat Copper Monoflo Scoop Tee can be used for either supply or return. The ½ inch sub loop is supply only. Please let us now if we can be of further assistance. Rick_HD_OC
Answered by: RickHDOC
Date published: 2017-02-17

What % water goes in 1/2 side

Asked by: dave
That is a great question. Unfortunately I do not have a definitive answer. The truth is the piping configuration, pump size and number of scoop/monoflow tees used. Will affect it. By number used, I mean some plumbers only use one downstream where as others will use one at the beginning and one at the end of the sub loop. But here is some logic that might help. ¾” copper tubing will carry 45000 BTU’s an hour using water temp of 180F. ½” copper tube will carry 12000 BTU’s. Thus roughly a ¼ of the heat should be diverted to the sub loop. I have never had to do this, but if more water was going down the ¾” or ½” side than I wanted, you could cut in a valve to balance it out. However keep in mind a ball valve 10% open gives you 90% flow. Meaning they are not good for modulating fine flow. In that situation you would want to use a balancing valve. An example of this is a globe style valve. Please feel free to call if you need further help. Chris 978 651 3301
Answered by: chris
Date published: 2015-11-10
  • y_2017, m_7, d_25, h_4CST
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