General Lab Products & Reviews

These No. 13 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchange…

These No. 16 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchange…

These No. 19 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchange…

(This is the suggested replacement for 7650N-22)These No. 22 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential c…

These No. 27 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchange…

These No. 32 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchange…

These No. 38 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchange…

These No. 8 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchangea…

These No. 9 hollow glass PYREX® stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing replacement costs. A barrel-shaped head means it is easy to clean and even easier to rotate in or out. Grooves in the sides help prevent slippage. The flat top allows the stopper to stand on its head, which frees the user's hand and minimizes potential contamination. This PYREX® stopper is interchangea…

(This is the suggested replacement for 7660-13)Pennyhead stoppers are generally used in flasks and separatory funnels."

(This is the suggested replacement for 7660-16)Pennyhead stoppers are generally used in flasks and separatory funnels."

(This is the suggested replacement for 7660-19)Pennyhead stoppers are generally used in flasks and separatory funnels."

(This is the suggested replacement for 7661-22)Pennyhead stoppers are generally used in flasks and separatory funnels."

(This is the suggested replacement for 7660-17)"

(This is the suggested replacement for 7660-9)Pennyhead stoppers are generally used in flasks and separatory funnels."

These blue No.10 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No.100 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No. 1000 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No. 200 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No.25 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No. 250 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No. 2000 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No. 50 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These blue No. 500 PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

These hand-driven 40 mL PYREX®; tissue grinders are supplied with two pestles to ensure dissociation of cells into fine particles with minimal damage to cell nuclei. Particularly useful in enzyme studies where heat build-up must be avoided. The internal diameter at the bottom of the unground glass tube (mortar) is .8475 Use the large clearance A pestle for initial reduction of soft tissue. The diameter of the ground and poli…