Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: MBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended U-COV108-H O-ring, Injector Liner, Black, High Temp, pk/1 Price on request RMK-0020 Routine Maintenance Kit: Tube conditioner (TC-20) Price on request 1234 BALLOONS FOR GAS SAMPLING, 5Liters Price on request