R0536300 Pool Volute Replacement Parts Compatible with for Polaris PB4-60 Booster Pump,Worm replace for PB4-60 pool booster pump,Not suitable for old pumps,Include R0536600 O-Ring If your old Pump is cracking and leaking, the Booster Pump Cover is a great solution. Its easy to install and youll be back to work with your pump in about 15 minutes. Material: PB4-60 Booster Pump Cover is made of strong and sturdy plastic, which can be well adapted to the pressure and environmental changes generated by the pump during operation. It is recommended that you do not over-tighten the cover during installation. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:plastic Package Contents: 1 x Pool Volute Replacement