General Lab Products & Reviews

These 59 mL PYREX® flat bottom reusable culture tubes are ideal for plant tissue culture and general culture work. The flat bottom facilitates use with agar slants. Walls and bottoms are of uniform thickness. The tubes are rimless for greater convenience in plugging and rack storage. Optional polypropylene two position closures (Nos. 26794-25 or 26795-25) can be opened for gas exchange or closed for humidified environment. Int…

These 14x100mm PYREX® ignition tubes are made from No. 7740 glass and are satisfactory for most applications encountered in school work where temperatures above 600°C are not required. These rimless tubes perform well when continually used at temperatures up to 500°C, or for short periods to 600°C.

These 16x125mm PYREX® ignition tubes are made from No. 7740 glass and are satisfactory for most applications encountered in school work where temperatures above 600°C are not required. These rimless tubes perform well when continually used at temperatures up to 500°C, or for short periods to 600°C.

This Conical Reaction Vial is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Cap is a replacement part for 0.1 mL Vial for the 6949M series of PYREX® microchemistry kits.

This O-Ring is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Polytetrafluorethylene (PTFE) Silicone Septa is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Spin Vane is a replacement part for the 6949M series of PYREX® microchemistry kits.

This is a replacement part for the 6949M series of PYREX® microchemistry kits.

This O-Ring is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Polytetrafluorethylene (PTFE) Silicone Septa is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Conical Reaction Vial is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Cap is a replacement part for the 6949M series of PYREX® microchemistry kits.

This O-Ring is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Polytetrafluorethylene (PTFE) Silicone Septa is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Spin Vane is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Conical Reaction Vial is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Conical Reaction Vial is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Cap is a replacement part for the 6949M series of PYREX® microchemistry kits.

These 100mm diameter PYREX® watch glasses are designed to fit 600 mL PYREX® beakers. They possess high chemical durability, thus preventing contamination of solutions. They are molded to the same radius of curvature for convenient stacking. The heavy wall and uniform fire-polished edge provide mechanical strength. The outside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expected…

These 125mm diameter PYREX® watch glasses are designed to fit 1L PYREX® beakers. They possess high chemical durability, thus preventing contamination of solutions. They are molded to the same radius of curvature for convenient stacking. The heavy wall and uniform fire-polished edge provide mechanical strength. The outside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expected to o…

These 150mm diameter PYREX® watch glasses are designed to fit 2L PYREX® beakers. They possess high chemical durability, thus preventing contamination of solutions. They are molded to the same radius of curvature for convenient stacking. The heavy wall and uniform fire-polished edge provide mechanical strength. The outside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expected to o…

These 75mm diameter PYREX® watch glasses are designed to fit 250 mL PYREX® beakers. They possess high chemical durability, thus preventing contamination of solutions. They are molded to the same radius of curvature for convenient stacking. The heavy wall and uniform fire-polished edge provide mechanical strength. The outside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expected t…

These 90mm diameter PYREX® watch glasses are designed to fit 400 mL PYREX® beakers. They possess high chemical durability, thus preventing contamination of solutions. They are molded to the same radius of curvature for convenient stacking. The heavy wall and uniform fire-polished edge provide mechanical strength. The outside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expected t…

These 100mm diameter ribbed PYREX® watch glasses are designed for use as covers for 600 mL PYREX® beakers. Ribs are molded into the glass so that they can't pop off as they do when cane is sealed to standard watch glasses. Permits escape of excess vapor and eliminates risk of contamination from dropped hooks or props. Meets EPA requirements for methods 3005, 3010, and 3020.