ProClean lids are now obsolete, they can be replaced with ProClean Plus lids. The “new” lid will have 2 hand holds and a built in pressure gauge.
The lock ring is removeable on the “new” style lid. The lid o-rings are the same. The locking tabs are different. The “new ” lid has 2 yellow locking tabs that will not engage on the older style filter bottom. Pictured as an example is the small lid, there are 3 different sizes. Small 75 & 100 sq ft Medium 125 & 150 sq ft. and Large 175 & 200 sq ft.
waterwayparts 