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 OST-LENZ01320014 Screw caps for screwthread tubes GL14 Price on request C-CRCK Canister Rack Connection Kit, for connecting 15 x 1/4" outlet canisters to U-RACK02 Price on request U-COV1516 Spare O-ring, black, for POD sampler (support body), pk 10 Price on request