Pentair (A&A) Manufacturing Gould Valve Lower Housing with Center Shaft || 521252 Blue Square PCC2000 It also helps hold the

It also helps hold the outer body covers (including the open lower body) into place so that way they can help in the efforts of protecting all the internal parts

Vacuum regulator and cap (41200-0213)

especially when trying to access the other parts for the same reasons

and other various forms of debris

When trying to troubleshoot an issue you are having with your cleaner not moving or grabbing the surface of the pool as well as before

Pentair (A&A) Manufacturing Gould Valve Lower Housing with Center Shaft || 521252 Blue Square PCC2000 It also helps hold thePentair (A&A) Manufacturing Gould Valve Lower Housing with Center Shaft 521252 This Lower Housing has 5 ports which connects directly to the top housing and center plate