S-WMN-G&K-1.25 E/CER fits these pumps Manufacturer Part Number Model Number Series Weinman 1G, 1.5G, 1.5GT, 2G, 2.5G, 3G, 4G 310 / Shaft Group 1 / 125# Weinman 4GL, 1.5K, 1.5KH, 2K, 2.5K, 3K 310 / Shaft Group 1 / 125# *with exception of U.S. Seal, all manufacturer's names, part numbers, and descriptions are used for reference purposes only. It is not implied that any part is the product of these manufacturers.