Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended SERZ-1076 Spare filter assembly, ACTI-VOC Price on request M-TSTIN Inserts, PTFE,pk 6 Price on request HEDMBT71_1L Multi-layer gas sampling bags, PP valve (4.76mm), 1L Price on request