Question
Chris, I am transitioning my run from a 1” to ¾” and I am not sure what I should use to reduce down in size at the condulet body. Any suggestions?
Answer
In this instance, you should use a reducing coupling accompanied with a short nipple.. Often times a reducing bushing is used which will result in a system that is not sealed due to a gap left between the sealing sleeve and the conduit. Using a reducing coupling with a short nipple will solve this problem. Photos are included below for reference.
Incorrect Method
Incorrect Use of Reducing Bushing Creates Risk of Failure
![Incorrect transition with the use of PVC-coated Reducing Bushing](/sites/default/files/styles/inline_image_04_default_1x/public/2021-01/ChrisCorner-ReducingBushing-Incorrect.jpg?itok=fCiIro6U)
A reducing bushing (1″ – ¾”) was inserted into the C Condulet Fitting. The conduit entering this fitting is 3/4”. Take note of the gap between the sealing sleeve and conduit. This gap is a void where water can collect and will ultimately lead to failure over time.
Correct Method
Use Reducing Coupling for Transitioning for Maximum Protection
![Correct Installation with Reducing Coupling](/sites/default/files/styles/inline_image_04_default_1x/public/2021-01/ChrisCorner-ReducingCoupling-Correct.jpg?itok=13UAuwIT)
Instead of using a reducing bushing you should use a reducing coupling (REC). The REC is female/female; to make the connection between the REC and condulet body use a short nipple. The desired end result is a sealed system.