Product Description 1. Rubber Bellow seal T11,T12 for pumps,equals to Johncrane 10T,10R 2. Our seals can replace the original seals. 3. We always keep balance both on Price and Quality. Brand: sealcon Performance Capabilities l Temperature: -20 to 200, dependent on the elastomer l Pressure: Up to 5 bar l Speed: Up to 12 m/s l End play/axial float allowance ±0.1mm Sizes 3/8�, 1/2�, 5/8�, 3/4�, 7 Materials Combination l Face: Carbon, SiC, TC l Seat: Ceramic, SiC, TC l Bellow: NBR, EPDM, VITON etc. l Spring: SS304, SS316 l Metal parts: SS304, SS316