Screw caps for screwthread tubes GL14, bore 8mm Back Catalog number: OST-201-0246 Availability: In the manufacturer's stock Price on request - + Recommended TDL71_0.3L Tedlar PVF Gas Sampling Bag with PP valve, 0,3L Price on request TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request SERLFP-5003 Spare back pressure adapter, ACTI-VOC Price on request