Ideal use for over head drive vessels. Description: 3L OHD Impeller Assembly Consists of Paddle, Plug, Paddle Holder, andDrive Shaft. Overall length is adjustable from 8.75”-10.75” with ½” increments. MADE IN THE USAPaddle [A523-206]: PTFE material, 108.0 mm wide x 44.5mm tall x 0.8mm thickPlug [A542-49]: PTFE, 9.5mm OD x 19.1mm long (approx.)Paddle Holder [A542-87]: White PTFE, 184.2mm long x 19.1mm ODDrive Shaft [A542-317]: 316L SST, 158.8mm long x 6.4mm OD (approx.)