7/8X3/4CCOUP – COPPER FITTING (REDUCER COUPLING, CxC)

A reducer coupling connects two different sizes of copper pipe in a straight line. This fitting transitions from 7/8″ to 3/4″ with C x C (copper-to-copper) connections — both ends accept copper pipe. Used in AC and refrigeration piping transitions.

Specs: 7/8″ x 3/4″ ACR reducer coupling, C x C, wrot copper.

Replaces: 20121

Fits: HVAC and refrigeration piping requiring a 7/8″ to 3/4″ transition.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 20121
• 78X34CCOUP
• MUELLER78X34

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• CFW01035-78TO34COPPERFITTINGREDUCERCOUPLING
• MUELLER78X34COPPERREDUCINGCOUPLING
• NIBCO78X34ODACRCOPPERREDUCERCOUPLING
• NIBCO78X34REDUCER