New DEVEX gas sampling bags with PTFE dual-valve, 5L Back Catalog number: NDV32_5L Availability: In the manufacturer's stock Price on request - + Recommended U-COV06 O-Ring, Size 006, pk/10 Price on request U-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request 1970-0011-R O-RING -011 .301 ID X .070 W Each Price on request