20mm Caps

20-400 Black Phenolic Unlined Hole Cap. Phenolic hole caps are provided without a septa. They provide the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. They also provide the most consistent...

20-400 Black Phenolic caps with Polyseal cone liners form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation,...

20-400 Black Phenolic caps with White Rubber liners are autoclavable. This liner is compliant with FDA 21 CFR 177.2600 Rubber Articles Intended for Repeated Use. The liner exhibit good resiliency and resistance to moisture vapor. The closures provide...

Thermoset caps with PTFE liners provide a wide range of chemical compatibility and temperature tolerance. Available in green or black. The foam backed PTFE resists attack from virtually all chemicals at room temperature and provides resilience for a...

20-400 ValuLine White Ribbed Polypropylene F217 & PTFE Lined Cap, Packed in Bags of 100. Low-priced plastic bottle caps and jar lids to meet your budget!Polypropylene (PP) caps with F217 & PTFE liners are an economical alternative to Thermoset and...

Dropper Length 86-88mm. Dropper Assemblies feature a glass tube with black Thermoset closure and rubber squeeze bulb. Tip opening has a 3.0mm outside diameter.

20-400 Black Phenolic Cap with Pulp/Vinyl Liner. Caps with pulp and vinyl liners are perfect for general use. The liner is made of a vinyl coating applied to high density polyethylene coated paper and then it is laminated to pulpboard. This general...

20-400 Black Phenolic Cap with Rubber Liner. Phenolic and Thermoset Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. Thermosetting plastics (thermosets) such as...

20-400 Black Phenolic Cap with Rubber Liner. Black Phenolic Rubber Lined Caps are autoclavable. The Liner is compliant with FDA 21 CFR 177.2600 Rubber Articles Intended for Repeated Use. The liner exhibit good resiliency and resistance to moisture vapor...

20-400 Black Phenolic Cap with Pulp/Aluminum Foil Liner. Black Phenolic Caps with Pulp/Aluminum Foil Liners are free of odor and taste problems, and are appropriate for non-acid, non-alkaline products. Typically used for food applications, these aluminum...

20-400 Black Phenolic Unlined Hole Cap. Phenolic hole caps are provided without a septa. They provide the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. They also provide the most consistent...

20-400 Black Phenolic Unlined Hole Cap, Packed in bags of 100. Phenolic Hole Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. They also provide the most consistent...

20-400 Black Ribbed Phenolic Cap with F217 & PTFE Liner. F217 & PTFE Liners can resist attack from virtually all chemicals at room temperature and provide a tight seal with a low moisture transmission rate. F217 has a low density foam core...

20-400 Black Ribbed Phenolic Cap with PolyCone Liner. Thermoset or Phenolic (Bakelite) caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. They also provide the most...

Dropper Length 74-76mm. Dropper Assemblies feature a glass tube with black Thermoset closure and rubber squeeze bulb. Tip opening has a 3.0mm outside diameter.

20-400 Green Smooth Thermoset Cap with F217 & PTFE Liner. F217 & PTFE Liners can resist attack from virtually all chemicals at room temperature and provide a tight seal with a low moisture transmission rate. F217 has a low density foam core between two...

20-400 Black Ribbed Phenolic Cap with PolyCone Liner. PolyCone Lined Phenolic Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually...

20-400 Black Phenolic Cap with Pulp/Vinyl Liner. Phenolic Pulp/Vinyl Lined Caps are perfect for general use. The liner is made of a vinyl coating applied to high density polyethylene coated paper and then it is laminated to pulpboard. This general...

20-400 Black Ribbed Phenolic Cap with F217 & PTFE Liner. Black Phenolic F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. Foam backed PTFE liners...

20-400 White Ribbed Polypropylene Cap with Pulp/Vinyl Liner. Pulp/Vinyl Lined Polypropylene Caps are commonly used for food, beverage, medical and chemical applications packed at less than 120° F, including mild acids, alkalis, solvents, alcohols,...