Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: HEDTDLC31Z_1.6L 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 RMK-0005 RoutMainten kit - TT24-7 Price on request U-T5O3F-2S Ozone precursors/Freon cold trap Price on request