Bottle Cap Assembly for 3/16'' OD, red, 1pc/PAK

Color - Red, Material - Tefzel (ETFE)/Polypropylene, For Tubing OD (in) - 3/16,

These bottle caps fits standard GL-45 (1 L) glass bottles. Upchurch Scientific® bottle caps are manufactured from Tefzel® ETFE and polypropylene.For this cap, one hole accepts 3/16" OD tubing, the typical size used with a Waters® system. The remaining two holes accept 1/18" OD tubing.