General Lab Products & Reviews

These 2L PYREX® wide mouth Erlenmeyer flasks are especially recommended for use as titration flasks and are designed with heavy duty rims to reduce chipping. For convenience, these flasks are graduated in durable white enamel to show the approximate capacity and have an extra large marking spot. They require a No. 13 rubber stopper for sealing. Their uniform wall thickness provides the proper balance between mechanical strengt…

Heavy duty bottle of low actinic glass for use when storing/transporting light sensitive materials. Includes a linerless, one-piece, autoclavable, orange polypropylene, plug-seal cap with drip-free pouring rings. Glass bead indicates full capacity line. Permanent white enamel graduations and marking spots. Replacement caps and pouring rings are available (catalog 1395 series).

These heavy duty 10L PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring.. Bottles have permanent white enamel graduations and marking spots.Caution: Bottles larger than 2L should NOT be used with bottle top filter units, or in o…

These heavy duty 1L PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring. New glass bead indicates full capacity line. Bottles have permanent white enamel graduations and marking spots.A wide range of optional caps are available f…

These heavy duty 25 mL PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL25 threaded cap. A pouring ring is not included on the 25 mL size. Optional red PBT caps and red ETFE pouring rings are available for dry heat sterilization (180°C). Bottles have permanent white ename…

These heavy duty 250 mL PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring. New glass bead indicates full capacity line. Bottles have permanent white enamel graduations and marking spots.A wide range of optional caps are availab…

These heavy duty 2L PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring. New glass bead indicates full capacity line. Bottles have permanent white enamel graduations and marking spots.A wide range of optional caps are available f…

These heavy duty 50 mL PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL32 threaded cap and a drip-free pouring ring. Optional red PBT caps and red ETFE pouring rings are available for dry heat sterilization (180°C). Bottles have permanent white enamel graduations and mar…

These heavy duty 500 mL PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring. New glass bead indicates full capacity line. Bottles have permanent white enamel graduations and marking spots.A wide range of optional caps are availab…

These heavy duty 5L PYREX® round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring. Bottles have permanent white enamel graduations and marking spots.Caution: Bottles larger than 2L should NOT be used with bottle top filter units, or in oth…

This simple 650mm long PYREX® air condenser has an inner 24/40 Standard Taper joint with a drip tip. It is made from low actinic glass to protect light sensitive materials and is useful for condensing materials with boiling points above 150°C.

These 1L PYREX® flasks, without tubulations, are blown in special molds in shapes designed to give maximum mechanical strength Marked to avoid confusion with similar sizes of Erlenmeyer flasks Graduated to show their approximate capacity Permanent white enamel graduations and marking spots Beaded rim uses a No. 8 rubber stopper

These 2L PYREX® flasks, without tubulations, are blown in special molds in shapes designed to give maximum mechanical strength Marked to avoid confusion with similar sizes of Erlenmeyer flasks Graduated to show their approximate capacity Permanent white enamel graduations and marking spots Beaded rim uses a No. 9 rubber stopper

These 4L PYREX® flasks, without tubulations, are blown in special molds in shapes designed to give maximum mechanical strength Marked to avoid confusion with similar sizes of Erlenmeyer flasks Graduated to show their approximate capacity Permanent white enamel graduations and marking spots Beaded rim uses a No. 12 rubber stopper

These PYREX® 2L flasks have sidearm tubulations and are blown in special molds designed to give maximum mechanical strength. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers. Tubulation O.D. is 12.5mm.

(This is the suggested replacement for 5342-1L)These 1L PYREX® heavy wall flasks have seated a bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers and uses a No. 8 rubber stopper. Tubulation O.D. is 12.5mm."

(This is the suggested replacement for 5342-250)These 250 mL PYREX® heavy wall flasks have seated a bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers and uses a No. 6 rubber stopper. Tubulation O.D. is 12.5mm"

(This is the suggested replacement for 5342-2L)These 2L PYREX® heavy wall flasks have seated a bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers and uses a No. 9 rubber stopper. Tubulation O.D. is 12.5mm."

(This is the suggested replacement for 5342-4LThese 4L PYREX® heavy wall flasks have seated a bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers and uses a No. 12 rubber stopper. Tubulation O.D. is 12.5mm."

(This is the suggested replacement for 5342-500)These 500 mL PYREX® heavy wall flasks have seated a bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers and uses a No. 7 rubber stopper. Tubulation O.D. is 12.5mm."

Brand: PYREX®

These PYREX® 125 mL micro filtering flasks are recommended for microchemical use. The vacuum hose is attached to the flask's sidearm. A funnel is inserted into the neck of the flask through a ground joint or rubber stopper. The applied vacuum facilitates the filtration process. These flasks have permanent white enamel marking spots.

These PYREX® 50 mL micro filtering flasks are recommended for microchemical use. The vacuum hose is attached to the flask's sidearm. A funnel is inserted into the neck of the flask through a ground joint or rubber stopper. The applied vacuum facilitates the filtration process. These flasks have permanent white enamel marking spots.

These 125 mL PYREX® iodine determination flasks are blown in specially designed molds, thereby insuring uniformity and proper contour. The No. 22 Standard Taper stopper projects above the liquid seal trough to facilitate removal. For replacement stoppers, see No. 7640N. Reference: ASTM D-29 and D-555.

These 250 mL PYREX® iodine determination flasks are blown in specially designed molds, thereby insuring uniformity and proper contour. The No. 22 Standard Taper stopper projects above the liquid seal trough to facilitate removal. For replacement stoppers, see No.7650-22. Reference: ASTM D-29 and D-555.