Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended P-CP020 O-Rings, 23mm × 3mm i.d.,pk 20 Price on request U-T1KORI Empty cold trap, KORI-xr Price on request M-MCTL250 Sample Pan Removal Tool, for high temp Micro-chamber Price on request