General Lab Products & Reviews

These microfiltration components are designed for the filtration of aqueous liquids. They may be used for the filtration of cell culture media, buffers or for particulate analysis of water samples. Units have coarse porosity frits, and accommodate 47mm filters. The components are interchangeable with competitive product offerings. Apparatus includes: 300 mL funnel, 47mm fritted glass support base, aluminum clamp and #8 silicon…

This 300 mL graduated funnel, 47mm is designed for assembly with the fritted glass support base, Cat. No. 33972-B.

This 47mm fritted glass support base is designed for assembly with either the 300 mL graduated glass funnel, Cat. No. 33971-300 or 1000 mL graduated glass funnel, Cat. No. 33971-1L.

This 1000 mL PYREX® Erlenmeyer flasks have 40/35 Standard Taper joints. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. For convenience, these flasks are graduated to show approximate capacity. An extra large marking space is also provided. Reference: ASTME-123.

This 4000 mL PYREX® Erlenmeyer flasks have 40/35 Standard Taper joints. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. For convenience, these flasks are graduated to show approximate capacity. An extra large marking space is also provided. Reference: ASTME-123.

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

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

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

This 250 mL capacity PYREX® solvent still head is used for maintaining oxygen free solvents. Head has sufficient storage space to allow solvent removal by syringe or drainage through 2mm T-bore PTFE (Polytetrafluorethylene) stopcock. It has a 24/40 Standard Taper outer joint at top, 24/40 Standard Taper inner joint at bottom and 14/20 Standard Taper inner joint on drainage arm.

This 500 mL capacity PYREX® solvent still head is used for maintaining oxygen free solvents. Head has sufficient storage space to allow solvent removal by syringe or drainage through 2mm T-bore PTFE (Polytetrafluorethylene) stopcock. It has a 24/40 Standard Taper outer joint at top, 24/40 Standard Taper inner joint at bottom and 14/20 Standard Taper inner joint on drainage arm.

This 10 mL PYREX® Dean Stark distilling receiver is graduated from 0 to 1 mL in 0.1 mL intervals, with a maximum scale error of 0.05 mL. The graduation intervals from 1.0 to 10.0 mL are 0.2 mL, with a maximum scale error of 0.1 mL. Reference: ASTM E-123.

These 150 mL PYREX® Buchner funnels have a 60mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exce…

These 150 mL PYREX® Buchner funnels have a 60mm diameter fine porosity fritted disc with a porosity range of 4 to 5.50 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exces…

These 150 mL PYREX® Buchner funnels have a 60mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exce…

These 15 mL PYREX® Buchner funnels have a 20mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exces…

These 15 mL PYREX® Buchner funnels have a 20mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm which is held toward the minimum pore diameter . The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess…

These 15 mL PYREX® Buchner funnels have a 20mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm which is held toward the minimum pore diameter . The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exce…

These 2 mL PYREX® Buchner funnels have a 10mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess…

These 2 mL PYREX® Buchner funnels have a 10mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess o…

These 2L PYREX® Buchner funnels have a 127mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess…

These 2L PYREX® Buchner funnels have a 127mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 The disc should not be subjected to pressure differential in excess of 1 atmosphere. The top edge is beaded. Please check our Technical Information Listing…

These 2L PYREX® Buchner funnels have a 127mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess…

These 30 mL PYREX® Buchner funnels have a 30mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exces…

These 30 mL PYREX® Buchner funnels have a 30mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess…

These 30 mL PYREX® Buchner funnels have a 30mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exces…