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-TICAP Tube interface cap for removable lid,pk 6 Price on request 1970-0234 O-RING-234 For High Flow Damper Plate Price on request C-EZVOCTG Easy-VOC TubeTAG Interface Price on request