Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: HEDTDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended HEDNDV61_25L New Devex Sampling Bag with ABS Valve & Septum Fitting, 25L Price on request 1970-0011-R O-RING -011 .301 ID X .070 W Each Price on request P-CP020 O-Rings, 23mm × 3mm i.d.,pk 20 Price on request