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-SPGSC-120 Adjustable sprung spacer, for M-CTE120I,pk 6 Price on request T-7CUS cust packed cold trap, TT24-7 Price on request C-HSINS10-6 Agitator spacer for vials, 20mL to 10mL, pk/6 Price on request