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Test tube closures ensure samples do not leak or are contaminated by providing a reliable seal. Securely mix or store small samples with these tops that allow one-handed sealing. Offered in a variety of colors, identification is made easier. Closures come in screw and snug-fit plug designs to fit any test tube opening style. Resistant to high temperatures, the versatile test tube closures can withstand heating applications while the chemical resistance guarantees limitless sample compatibility.

Test tube closures ensure samples do not leak or are contaminated by providing a reliable seal. Securely mix or store small samples with these tops that allow one-handed sealing. Offered in a variety of colors, identification is made easier. Closures come in screw and snug-fit plug designs to fit any test tube opening style. Resistant to high temperatures, the versatile test tube closures can withstand heating applications while the chemical resistance guarantees limitless sample compatibility.


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Product Image-28296-618

SAV-IT* Closure for 16mm Culture Tubes

Description: For blood collection and glass or plastic test tubes. Seals inside rim of 16mm, and seals outside rim of 12 and 13mm tubes. Protects against evaporation. Packaged 1000 closures per pack, 10 packs per case. Green.
Catalog Number: 28296-618
Supplier: Thermo Scientific
Product Image-66009-967

Caps closures Screw Thread Polypropylene with Open Top

Description: GPI Thread Finish; 24-400. Color; Black Available in a wide assortment of colors. GPI thread size 8-425 is designed for use with Shimadzu, Jasco, Hitachi and other autosamplers. 10-425 GPI thread size is used on 12x32 mm screw thread LOVials.
Catalog Number: 66009-967
Supplier: DWK Life Sciences (KIMBLE)
Product Image-76538-878

SNAPCAP PE RED F/13MM/12MM TUBES PK1000

Catalog Number: 76538-878
Supplier: Globe Scientific
Product Image-25224-174

Spectra/Por* Magnetic Weighted Closures, 75mm

Description: Feature imbedded fluoropolymer resin-coated magnetic weight. Sink in water. Provide slow spin movement of membrane when used with magnetic stir plate. No additional stirring bar required to maintain continuous motion. Not for use with CE or PVDF tubing.
Catalog Number: 25224-174
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-25225-300

Universal Closures, 70 mm

Description: White. Nylon closure locks gently over rigid membranes such as cellulose ester (CE) and polyvinylidene fluoride (type F). Provides strong, leak-proof seal. Sinks in water. Can be sterilized with gamma radiation, ethylene oxide, ethanol, or formaldehyde. Not autoclavable.
Catalog Number: 25225-300
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-10029-172

Plug Cap For 17Mm Tubes. Made Of Polyethylene. Cs/4000. Green

Catalog Number: 10029-172
Supplier: Simport Scientific
Product Image-25224-136

Spectra/Por* Weighted Closure

Description: Polypropylene closure with stainless steel bar pressure-fitted into the reverse side. Autoclavable. When used with Spectra/Por standard closure, complete submersion of the dialysis sac can be achieved for a more efficient dialysis effect. Gripping width: 12mm.
Catalog Number: 25224-136
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-25225-312

Universal Closures, 50 mm

Description: White. Nylon closure locks gently over rigid membranes such as cellulose ester (CE) and polyvinylidene fluoride (type F). Provides strong, leak-proof seal. Sinks in water. Can be sterilized with gamma radiation, ethylene oxide, ethanol, or formaldehyde. Not autoclavable.
Catalog Number: 25225-312
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-25225-298

Universal Closures, 110 mm

Description: Yellow. Nylon closure locks gently over rigid membranes such as cellulose ester (CE) and polyvinylidene fluoride (type F). Provides strong, leak-proof seal. Sinks in water. Can be sterilized with gamma radiation, ethylene oxide, ethanol, or formaldehyde. Not autoclavable.
Catalog Number: 25225-298
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-10029-176

Plug Cap For 17Mm Tubes. Made Of Polyethylene. Cs/4000. White

Catalog Number: 10029-176
Supplier: Simport Scientific
Product Image-76538-870

SNAPCAP PE LVNDR F/16MM EVAC TUBE PK1000

Catalog Number: 76538-870
Supplier: Globe Scientific
Product Image-76538-866

SNAPCAP PE YL F/16MM EVAC TUBES PK1000

Catalog Number: 76538-866
Supplier: Globe Scientific
Product Image-25225-292

Universal Closures, 150 mm

Description: Red. Nylon closure locks gently over rigid membranes such as cellulose ester (CE) and polyvinylidene fluoride (type F). Provides strong, leak-proof seal. Sinks in water. Can be sterilized with gamma radiation, ethylene oxide, ethanol, or formaldehyde. Not autoclavable.
Catalog Number: 25225-292
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-82050-372

Grip Cap

Description: 14mm, PET (Polyethylene Terephthalate), Clear.
Catalog Number: 82050-372
Supplier: Greiner Bio-One
Product Image-25224-172

Spectra/Por* Magnetic Weighted Closures, 55mm

Description: Feature imbedded fluoropolymer resin-coated magnetic weight. Sink in water. Provide slow spin movement of membrane when used with magnetic stir plate. No additional stirring bar required to maintain continuous motion. Not for use with CE or PVDF tubing.
Catalog Number: 25224-172
Supplier: Spectrum Laboratories

Small Business Enterprise


Product Image-25225-306

Universal Closures, 70 mm

Description: Blue. Nylon closure locks gently over rigid membranes such as cellulose ester (CE) and polyvinylidene fluoride (type F). Provides strong, leak-proof seal. Sinks in water. Can be sterilized with gamma radiation, ethylene oxide, ethanol, or formaldehyde. Not autoclavable.
Catalog Number: 25225-306
Supplier: Spectrum Laboratories

Small Business Enterprise


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