Zodiac Pacer Inner Extension Pipe
The Zodiac inner extension pipe holds the zodiac diaphragm in place inside the inner body and outer extension pipe.
The zodiac compression ring holds on to the inner extension pipe to create a pulsating action when the water flows through the diaphragm and inner extension pipe.
If the inner extension pipe is warn out where the compression ring bites into it the pool cleaner will not work to its optimal performance.
Please note that this is a genuine Zodiac Pacer part.