Everbilt 1-1/4 in. Well Point Drive Coupling EBC125 - The Home Depot
Atlanta Drive Systems 65 43 114 Motor Drive Coupling - IMS Supply
Flexible Drive Coupling Stainless Steel High Speed Industrial Clamp for Power Transmission Parts High Quality Best Sales Connector Flexible Drive Couplings - China Coupling, Flexible Coupling | Made-in-China.com
Drive coupling for group 2 pump to 3/4" (19mm) Shaft on Honda and Loncin engines | eBay