Genuine Archard Optima PS1 exhaust/combustion blower, spade terminals connectors. Replacement For Part Number. 120V, 60Hz, 1.75A, 3000RMP, 5/16″ Shaft Diameter, 1 13/16″ Shaft Length, 3-Wire Pigtail 1/4 female spade terminals. Listing and template services provided by inkFrog.