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 C-CL010 Penclips, pk10 Price on request HEDDEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request C-MCTEKIT-250 High Temperature MCTE Starter Kit Price on request