Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: TDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended MBT71_1L Multi-layer gas sampling bags, PP valve (4.76mm), 1L Price on request U-T20PAM-2S Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for UNITY-xr, TD100-xr, Centri Price on request C-CRCK Canister Rack Connection Kit, for connecting 15 x 1/4" outlet canisters to U-RACK02 Price on request