These blue PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

Sterilized by gamma irradiation 33 mm polyethylene threaded cap Thomas No. 1234H49 is a universal cap with a vented overcap designed to fit pre-existing filling systems for other product brands. Vented overcap has 1.0 µm PTFE membrane sealed into the peelable foil cover. 1234H51…

33mm threaded cap Vented cap has 0.2um pore nonwettable (hydrophobic) membrane sealed directly to the cap Allows gas exchange while minimizing the risk of contamination Sterilized by gamma irradiation

These blue and white No. 9 PYREX® stoppers are made from linear high-density polyethylene and have closed bottoms to conform to Standard Taper stopper dimensions. The three rings on the plug provide an efficient seal. This improved design fully protects t

These blue and white No. 32 PYREX® stoppers are made from linear high-density polyethylene and have closed bottoms to conform to Standard Taper stopper dimensions. The three rings on the plug provide an efficient seal. This improved design fully protects

These blue and white No. 16 PYREX® stoppers are made from linear high-density polyethylene and have closed bottoms to conform to Standard Taper stopper dimensions. The three rings on the plug provide an efficient seal. This improved design fully protects the neck in the event of accidental…

These blue and white No. 22 PYREX® stoppers are made from linear high-density polyethylene and have closed bottoms to conform to Standard Taper stopper dimensions. The three rings on the plug provide an efficient seal. This improved design fully protects the neck in the event of accidental…

Available in five sizes: 1-Stack with 636 cm² cell growth area 2-Stack with 1,272 cm² cell growth area 5-Stack with 3,180 cm² cell growth area 10-Stack with 6,360 cm² cell growth area 40-Stack with 25,440 cm² cell growth area Choice of…

These blue and white No. 13 PYREX® stoppers are made from linear high-density polyethylene and have closed bottoms to conform to Standard Taper stopper dimensions. The three rings on the plug provide an efficient seal. This improved design fully protects the neck in the event of accidental…