Value Collection ITRS-0-BKN Tapered Rubber Stopper Size 0

Product Description

The VALUE COLLECTION ITRS-0-BKN is a Size 0 tapered rubber stopper designed to seal and plug openings in laboratory, plumbing, and industrial applications. The stopper features a 0.5-inch small-end diameter and a 43/64-inch large-end diameter, with a projection of 0.672 inches. Molded from black rubber with a Shore A durometer hardness range of 38 to 48, it delivers consistent flexibility and sealing force across a range of neck and flask sizes. Plumbers, lab technicians, and industrial maintenance professionals install this type of stopper where a reliable, removable plug is needed.

This stopper is suited for use in residential and commercial plumbing drain testing, laboratory flask and bottle sealing, and general industrial pipe plugging. The Size 0 designation corresponds to a Neck Size 1 opening, making it compatible with standard glassware and tubing in that size range. Its tapered profile allows a secure friction fit without adhesives or fasteners, and the rubber construction resists moisture and mild chemical exposure in typical service conditions.

Key Features

• Tapered profile provides secure friction fit in Size 0 openings without adhesives
• Shore A durometer hardness of 38 to 48 balances flexibility with sealing force
• Small-end diameter of 0.5 inches and large-end diameter of 43/64 inches for standard Size 0 fitment
• 0.672-inch projection accommodates typical neck depth
• Black rubber construction resists moisture and mild chemical exposure
• Sold in quantities compatible with trade and maintenance stocking needs

Compatibility

Designed as a standard Size 0 tapered rubber stopper suitable for use with laboratory glassware, drain test setups, and industrial tubing with a Neck Size 1 opening.

Installation Notes

Insert the stopper small-end first into the target opening and press firmly until seated; the taper creates the seal through friction alone. No tools are required for standard installation. Inspect the stopper for cracking or deformation before each use, and do not exceed the pressure or temperature limits appropriate for rubber stoppers in the application. Remove by pulling straight out or rocking gently to break the friction seal.