Inserts, PTFE,pk 6 Back Catalog number: M-TSTIN Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended TDL71_10L Tedlar PVF Gas Sampling Bag with PP valve, 10L, 3/16'' OD (4.76mm) Price on request U-T14H2S-2S H2S cold trap, UNITY 2/xr Price on request C-HSINS10-4 Vial block insert, 20mL to 10mL, pk 4 Price on request