Description AquaFlo/Gecko FMHP/FMCP/TMCP Pump Impeller Closed face impeller made for the FMHP, FMCP, and TMCP series spa pumps by Aqua-Flo / Gecko Rated at 1/2hp, it is used in a FMHP/CP or TMCP wet end must be installed on a 1/2hp (or greater) thru bolt motor. Shaft seal sold separately. Specifications: Impeller Type: Closed Face Impeller Diameter OD: 3-7/16″ Vane Width: 1/4″ Eye Diameter OD: 1-3/4″ Eye Length: 15/16″ Impeller Width OD: 7/16″ Seal Seat Depth: 1/4″ Shaft Lenght: 1-3/4″ Shaft Diameter OD: 5/8″ Seal Seat Diameter OD: 1-1/4″ Mfg: AquaFlo/Gecko Pump Applications: FMCP, FMHP, TMCP Dot Color Code: Red/Green