Pentair Tagelus Top Mount Sand Filter -- 24" (2" MPV) | SKU 145385 Pentair Trade Grade WhisperFlo Pool Pumps They also have grooves on

They also have grooves on the backside where the springs are to be installed that helps the movement of the flaps

Suitable for all surfaces

out the hoses

Color is black

Pentair Tagelus Top Mount Sand Filter -- 24" (2" MPV) | SKU 145385 Pentair Trade Grade WhisperFlo Pool Pumps They also have grooves onPentair Tagelus TA60D Top Mount Sand Filter 24 (2 MPV) SKU 145385 Durable 24 fiberglass reinforced sand filter with 2 multiport valve for residential pools. Features One piece fiberglass reinforced tank offers exceptional strength and long term durability. 2 top mounted six position Hi Flow multiport valve simplifies service and enhances flow. 3. 1 sq. ft. filtration area and 24 diameter tank support up to ~60 GPM throughput. Combination water and