Cat. No. Description Thread Pack Unit 11 297 50 Screw cap GL 45, PP, 2 ports GL 14 GL 45 2 11 297 51 Screw cap GL 45, PP, 3 ports GL 14 GL 45 2 11 298 14 Screw cap GL 14 PP, for tubing connection GL 14 2 11 298 15 Insert for screw cap GL 14, ID 1.6 mm (1/16 inch) 1 11 298 16 Insert for screw cap GL 14, ID 3.0 mm (~1/8 inch) 1