Includes two replacement PTFE bushings. Not autoclavable. Fits stirring rods with 10mm diameter. Includes extraction nut to effortlessly remove stopper from flask

Safe-Lab™ solid Teflon® PTFE plastic stopper with threaded polypropylene extracting nut is easily removed by turning the red extraction nut to apply a safe, gentle and even force against the mouth of the vessel.  For use with separatory funnels and volumetric flasks Helps…

Interchangeable with penny head stoppers. Use with boiling and distilling standard tapered flasks. These lightweight, hollow, borosilicate glass stopper have a flat hex head for easy gripping. Includes extracting nut for safe removal from flasks with ground joints Chemical resistant and…

Similar to 8771R10 series, but in standard taper joint sizes Conforms to ASTM Standard E 675 Use with boiling and distilling flasks

Not autoclavable. PTFE stopper threads to Safe-Lab® Therm-O-Vac® Port Adaptors come with choice of 6 or 8mm opening. Comes with extraction nut to effortlessly remove stopper from vessel

This precision-engineered adapter may be cut with a fine-tooth saw or sharp knife into various adapters, such as individual bushings, stirrer bearings, thermometer and gas inlet tube supports, drip-tips, funnels, trap connectors for tubing, etc. Forms a continuous standard taper inside and…

Open at large end, with uniform taper similar to that of rubber stoppers Hollow shell polyethylene construction affords sufficient flexibility to provide secure seal Top edge is reinforced to increase rigidity Can also be inverted for use as loose or tight-fitting caps. Smooth inside walls and…

CLEARANCE SALE! Original Price: $32.85 Open at large end, with uniform taper similar to that of rubber stoppers Hollow shell polyethylene construction affords sufficient flexibility to provide secure seal Top edge is reinforced to increase rigidity Can also be…