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-SPFSC-250 SPF Sample Cutter and Mat, for high temp Micro-chamber Price on request RMK-0006 Routine maintenance kit for M-CTE120I Price on request SERZ-1076 Spare filter assembly, ACTI-VOC Price on request