Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: POL32_5L Availability: In the manufacturer's stock Price on request - + Recommended 1970-0007 O-RING-007 .145 ID x .070 W for LFS-113 (5 Requi Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request