Bottle Cap Assembly for 1/8'' OD, black, small neck, 1pc/PAK

Color - Black, Material - Tefzel (ETFE)/Polypropylene, For Tubing OD (in) - 1/8,

These bottle caps fits smaller-neck GL-38 (4 L) glass bottles. Upchurch Scientific® bottle caps are manufactured from Tefzel® ETFE and polypropylene and the bottle cap plugs from UHMWPE. Each cap has three holes. Two of the holes allow tubing to be pushed straight through into the bottle. The third hole, with a luer taper, can be used for a number of options. Any male luer (such as a luer-lock syringe) will fit snugly in this hole, or use the (A-626) plug.