Flask Closures

An assortment of flask closures to accommodate a broad range specific of laboratory applications. Typically manufactured from autoclavable plastics such as polyethylene or polypropylene, flask closures are available as sterile or non-sterile, disposable or reusable, vented or unvented, and may be snap-cap or screw-cap in format. Vented flask closures commonly include a 0.2 µm filter membrane to prevent contamination of flask contents. Screw caps with plug seals are available for applications that require a tight seal, such as Thermo Scientific™ Sterilin™ Silicone Stoppers.