Polaris Booster Pump w/ 60 Hz Motor Impeller, PB4-60 || R0536400
New Style Zodiac Polaris Booster Pump PB4-60 Impeller Original Part # R0536400. Included (1) R0536400 - Impeller. This New style PB4-60 Impeller is designed for the newer Polaris PB4-60 booster pump manufactured from Jan 1, 2012 to Current year with serial numbers after PB120111001.