Newer models of the Waterway Pro Clean Plus filters (2016+) use 2.5″ unions on both the intake and the discharge of the filter tank. The assembly may use an o-ring (805-0232) or a ribbed flat gasket (711-6020). They are available in both white and black, and with a few different adapters, 2″ slip being the most popular. All parts are available at http://www.waterwayparts.com
WATERWAY PRO CLEAN LIDS
25 AugPictured on right is “old” style Pro Clean tank and lid (75 sq ft. used as example)
Pictured on left is “new” style Pro Clean Plus tank and lid.
The lid for the older style is no longer manufactured, to replace lid you will need to use the Pro Clean Plus lid. Notice the locking clips are different. The new style lock ring has 2 hand holds, not 4. If you use the “new” style lid on the “old” style base the white lock tab will need to be removed and the yellow (2) safety lock tabs on the new lid will serve no purpose. The “new” lid has an improved air relief valve, built in lid handles, and a bottom mount pressure gauge. If you need technical assistance call Waterway Parts at 210-650-4034
Pictured on the far left is the “old” style Pro Clean base with a “new” style Pro Clean Plus lid installed.
There are 3 sizes (heights) of lids , small(75 & 100), medium(125 & 150), and large( 175 & 200), this info is true of all 3 sizes.