The Pentair C21-2 is a Diffuser Ring. This ring is compatible with D-Series Self Priming Centrifugal Pump and Sta-Rite® ED Series Gas Engine Self Priming Centrifugal Pump. It is a genuine Pentair product.
Diffuser Seal Ring 1HP and 2.5HP
Price: $9.00
Classic 3 Bend Welded Brace Hand Rail
Price: $544.40-$971.54
Cover Installation Bar, Professional, 36", Heavy Duty
Price: Discontinued
Basket, Pump, Pent/Sta-Rite Dyna-Glas/Dyna-Max,
Price: $12.69
O-Ring Strainer Lid Bs452a Hydrostar Plus Composite
Price: $27.15
Supaskimmer Leaf Basket (Basket Only, No Components)
Price: $26.20
Mechanical Seal For Waterco Pumps
Price: $25.29
O-Ring For Hydrostorm Main Body
Price: $9.87