3-Way Splitter Fittings

A T-piece takes one G1/4 port and gives you two, which is the standard way to add a drain line at the lowest point of a loop or a fill port at the highest, without re-plumbing anything else.

Alphacool supplies round TEE connection terminals in black, chrome and white. Barrow makes 3-way block splitters in black and silver, plus rotary versions where the branch has to be aimed after it is tightened. Thermal Grizzly adds further options.

A drain at the true low point of the loop saves you an hour every time you change coolant. It is the single accessory most people add on the second build and wish they had on the first.

Larger splits are in 4-way and 5-way splitters.

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