Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: HEDMBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended P-CPU10 Unions, for VOC-Mole cap assembly,pk10 Price on request U-COV1516 Spare O-ring, black, for POD sampler (support body), pk 10 Price on request HEDNDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request