Pentair SD80 26″ Top Mount Sand Dollar Filter | 145386 WhisperFlo VS/VSF Variable Speed Pumps This cleaner uses the reliable

This cleaner uses the reliable Dura Life Diaphragm

or single-speed equipment

Pentair FNS Plus Filter 48 sq ft | EC-180008

So you want to check the integrity of this housing for such damage and replace it if found to restore the cleaner back to its normal functionality

Pentair SD80 26″ Top Mount Sand Dollar Filter | 145386 WhisperFlo VS/VSF Variable Speed Pumps This cleaner uses the reliablePentair SD80 26 Top Mount Sand Dollar Filter 145386 High performance sand filter delivers 75 GPM flow rate, 26 diameter thermoplastic tank, and easy servicing for crystal clear pool water. Features 75 GPM maximum flow rate for efficient filtration of medium to large residential pools. 26 diameter, one piece thermoplastic tank provides exceptional strength and corrosion resistance. 3. 5 sq. ft. effective filtration area handles up to ~54,000 gal