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 M-SPC05-120 Collar spacer, alum 5mm, for M-CTE120I,pk 6 Price on request C-VAC-FULL-ARR-KI Vacuum SPME Arrow Full Starter Kit Price on request HEDFLD32_2L Fluode gas sampling bag with PTFE dual-valve, 2L Price on request