The Pentair C101-126B is a Volute Diffuser with Wear Ring. It is compatible with the D Series 5HP Medium Head Pump. It is a genuine Pentair product.
Volute Diffuser with Wear Ring for D Series 5HP Medium Head Pump
Price: Discontinued by Manufacturer
O-Ring Strainer Lid Bs452a Hydrostar Plus Composite
Price: $25.61
Supaskimmer Leaf Basket (Basket Only, No Components)
Price: $24.72
Mechanical Seal For Waterco Pumps
Price: $23.86
O-Ring For Hydrostorm Main Body
Price: $9.31