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 HEDDEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request HEDDEV21_0.5L Devex bag with PC valve, 0,5L Price on request OST-227-3141 Spare solid glass stopcock key, NS 14,5, 2pc/pk Price on request