The Pentair Universal Pump Lid (354531) is the OEM replacement strainer pot lid for the Pentair Dynamo above-ground pool pump. Sold individually. The strainer pot lid seals the pump's hair and lint trap housing, maintaining the pressure needed for the pump to prime and circulate water effectively. A cracked, warped, or missing lid allows air into the wet end, causing loss of prime, reduced flow, and potential pump damage. Specifications Pentair Part Number 354531 Part Name Lid, Universal Part Category Lids Quantity Included 1 (Each) Compatible Equipment Pentair Dynamo Above-Ground Pool Pump Fits Into Brand Equipment Line Model / Part Number Notes Pentair Dynamo DYNAMO Universal lid Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Poolaroo Pro Tip When replacing the strainer pot lid, inspect the lid O-ring at the same time. A lid in good condition paired with a degraded O-ring will still leak air and cause prime loss. Replace both together to restore a proper seal and avoid a second service call.