Waterway EX2 Pump Impeller Closed face impeller made for the EX2 pump by Waterway Plastics. Rated at 3.0hp, it is used in a Waterway EX2 pump wetend, and must be installed on a 3.0hp (or greater) thru bolt motor. Shaft seal sold separately. Specs: Impeller Type - Closed Face Impeller Diameter OD - 4-7/16" Vane Width ID - 7/16" Eye Diameter OD - 2-1/8" Eye Length - 1/2" Impeller Width OD - 11/16" Seal Seat Depth - 1/8" Shaft Length - 1-1/2" Shaft Diameter OD - 5/8" Seal Seat Diameter OD - 1-1/4" Manufacturer - Waterway Pump Application - EX2