Test Tube Caps

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, oils and aqueous products. Polypropylene caps are known for good impact strength, durability, cost...

20-400 I-LOC CAP, PP YLW

Features large knurls for ergonomic handling Contains hydrophobic membrane for applications requiring gas exchange Sterilized by gamma radiationDoes not fit 490cm² roller bottles .

Black phenolic screw cap 14B Rubber lined caps feature a nontoxic white styrene- butadiene rubber liner ideal for cell culture work GPI thread: 8mm-425 Autoclavable Case of 1000

Pre-assembled closure and septa minimize contamination from handling. Enhance your laboratory's precision and efficiency with the Chemglass Preassembled GPI 10-425 Septa Caps. These high-quality caps are designed to provide a secure seal, safeguarding your valuable samples and substances. Engineered...

Tip made of LDPE (Low Density Polyethylene) Extended controlled dropper tip dispenses one drop at a time Average drop size is 44uL

MicroLiter offers products for both LC and GC applications. Ensuring the integrity of your samples is paramount in every scientific experiment. With the 11mm Snap Caps that come with an integrated PTFE Septa, contamination is a thing of the past. These caps provide a secure fit for your vials,...

The Finneran solid top cap is used with vials to ensure tight sealing of the stored sample. It is mainly used in research laboratories or in chemical industries. This cap is made of sturdy polypropylene material which ensures long lasting usage and durability.

ChemoPlus™ IVA seals for bottles and vials are sterile seals that protect point of entry of IV admixtures from contamination and accidental double dosing. Packaging is USP 797 compliant. Liner, dispenser and core are non-linting and can easily be wiped down. They have a dual warning system in...

O-Rings for Nalge # DS3132-series Sealing Caps

Excellent for Culture Tube and Flask Closures. 305 Stainless Steel, Non-Corroding. Lanced fingers grip firmly after repeated autoclaving.

As part of the prestigious National Scientific brand, our black 11mm snap caps are expertly designed to offer convenience and security for scientific applications. Crafted for durability and reliability, these caps provide an effortless snap-on feature, ensuring easy application and removal without...

Caps fit Corning media bottles, Erlenmeyer flasks and spinner flasks with standard GL threads. Standard Plug Seal Caps are autoclavable and use a linerless plug seal design for efficient sealing. Pouring Rings fit on the lips of bottles for drip-free pouring. Autoclavable Vented Caps have a 0.22...

Made of polyethylene These caps have two flexible flanges to ensure a leakproof seal. They will fit into test tubes and also in round cuvettes and centrifuge tubes.

White polypropylene closure, F217 Lined Ensure the secure storage of your scientific samples with the F217 lined Solid Top Closures. These caps are designed to provide a high degree of chemical resistance, thanks to their three-ply co-extruded liner. The liner, made of foamed and solid LDPE, is...

The Sarstedt color-coded insert is made from polypropylene material that makes it strong for a long time. Color-coded design facilitates easy identification in dark areas.

Broad variety of closures and caps in different colors Closed top closures with different septa materials for sample storage 9 mm screw cap suitable for almost all autosamplers due to its design in form of a crimp cap Thread design not standardized; avoid mixture of vials and caps from different...

Body is constructed of glass-filled PTFE with a vacuum adapter for 1/4” ID tubing Upper screw clamp holds a solvent pickup adapter or funnel 40-60 micron porosity fritted glass filter support is removable Supplied with a PTFE/propylene o-ring

Fits a variety of tubes, including 10,12, 13, 16 and 18mm sizes of blood collecting and disposable culture tubes Liquid-tight seal prevents sample evaporation. The Hexa-Flex™ Safety Cap is designed to hold under centrifugation, agitation, refrigeration and freezing Easy identification of...

These autoclavable caps are designed to ensure the ultimate in product safety.

Tefon®-faced (14B) rubber liners Autoclavable caps are designed to ensure the ultimate in product safety. The liners are made of a nontoxic white styrene-butadiene rubber and are faced with Teflon® which offers excellent chemical resistance. They are available in convenient lab pack quantities as...

Standards: AASHTO M210ASTM C490 Enhance the accuracy of your length measurements with our Prism Length Change Gage Studs. These studs are designed to provide consistent, reliable results in various physical science and engineering applications. Crafted from high-quality materials, they offer...

24-400/24-400 CONNECTION, BLK PHEN

Designed for standard screw thread vials. Available with or without septa. Easy on and easy off convenience with a twist of the cap that produces an evaporation proof seal. Larger opening provides a increased target area for needle penetration. Specifications: Size: 9mm Color: Blue Case Quantity:...