Replacement closed-top polypropylene closures and PTFE liners are sold separately and unassembled except for 1709B73, which is a 24-414 size that comes with a bonded-in PTFE-lined silicone liner.

Bonded Teflon®-Faced Silicone Liners White autoclavable open-top caps have a bonded Teflon-Faced Silicone Liner making them ideal for storage and retrieval of volatile solvents, sensitive compounds and corrosive chemicals. The liners consist of 0.055” of Silicone and 0.005” of…

Bonded Teflon®-faced silicone liners White, autoclavable caps have a bonded Teflon-Faced Silicone Liner making them suitable for storage and containment of volatile solvents, sensitive compounds and corrosive chemicals.  The liners consist of 0.055” of Silicone and 0.005”…

Stem & Draw Tube Closure Applicable with Nalge # 2401-0125 & 2401-0250

Suitable for a wide range of applications Excellent moisture barrier Good for mild acids, alkalis, solvents, alcohols, oil and aqueous products Cap liner consists of one mil poly vinyl film bonded to one mil HDPE on a #30 white pulp paper backing. Superior to plain pulp paper because…

Fit Thermo Scientific™ Nalgene™ Narrow Mouth and Wide Mouth Bottle Replacement Closures onto Nalgene narrow mouth and wide mouth bottles.

LDPE foam-lined white polypropylene cap Bottles sold separately: 013-series and 012-series Recommended for general purpose sampling where cleaning and certification is not required, or ready for your own cleaning and certification procedures Economically bulk packed Includes:…

Autoclavable Two-part assembly For attachment to centrifuge tubes or bottles to prevent leakage during extremely high speed centrifugation. Two-part assembly consists of polypropylene screw closure and a retained silicone gasket. Caps can be written on for easy notation.

Ideal for high purity chemicals, strong acids, solvents Excellent for environmental samples, pharmaceuticals and diagnostic reagents Teflon-faced foamed polyethylene liner offers the excellent chemical resistance of Teflon with the compressibility and sealing properties of polyethylene foam.

Dispense just one drop at a time, with convenient, one-hand operation Captive spout cap stays in place when bottle is squeezed

Replacement polypropylene open top closures have a bonded-in 0.045” thick septa except for 1709B03, which is a 24-414 open top closure without septa. Choose an I-CHEM® 0.125” thick, 22 mm, PTFE silicone replacement septum to complete the closure system. Thin septa are also available.