Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: MBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended FEP32_2L FEP gas sampling bag with PTFE dual-valve, 2L Price on request T-7CUS cust packed cold trap, TT24-7 Price on request U-T15ATA-2S UNITY 2 Cold trap, TO-15/TO-17 Air Toxics C2/3 Price on request