Century Centurion 2.0 HP Threaded Shaft Motor B2855. Note: NOT California Title 20 Compliant. 2.0 HP Square Frame Threaded Shaft Up Rated Single Speed – Up Rated 60 Hz. INGROUND POOL PUMPS SUCH AS STA-RITE, HYDRO-TECH, PREMIER, AQUAFLO, RED JACKET, SEARS, PAC FAB AND PENTAIR PUMPS. Pool and Spa Pump Motor. UL 1081 Approved, UL Recognized (E14663), CSA Certified (LR4642).