Tee & Wye Fittings for Aquariums

Remember that every 90 degree turn you add to an aquarium return pump manifold adds a foot of head pressure, which will reduce the total flow. With a few T fittings, it is possible to drastically reduce the return pump flow.

PVC fittings are listed according to PVC pipe sizes, not the actual measurement of the part. So, a 1 inch slip elbow does not measure 1 inch but fits onto 1 inch PVC pipe. PVC fittings are categorized by the types of connections they make:

MPT, or male pipe thread, has threads on the outside wall
FPT, or female pipe thread, has threads on the inside wall
A PVC slip fitting, or slip fit, has no threads and connects to PVC pipe
PVC insert fittings, or hose barb fittings, connect to aquarium tubing (not flex PVC pipe)
A reducer fitting reduces PVC size
5 Results
WYE Fitting - 1 inch Slip x 1 inch Slip x 1 inch Slip

WYE Fitting - 1 inch Slip x 1 inch Slip x 1 inch Slip

Tee Fitting - 3/4 inch FPT x 3/4 inch FPT x 3/4 inch FPT

Tee Fitting - 3/4 inch FPT x 3/4 inch FPT x 3/4 inch FPT

Tee Fitting - 1 inch FPT x 1 inch FPT x 1 inch FPT

Tee Fitting - 1 inch FPT x 1 inch FPT x 1 inch FPT

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