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 T-13PAM Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for TT24-7 Price on request OST-201-3421 Tube gas sampling 350, nozzle (GL14), septum Price on request 1230 BALLOONS FOR GAS SAMPLING, 1Liter Price on request