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-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request M-MCTL250 Sample Pan Removal Tool, for high temp Micro-chamber Price on request C-HSINS10-6 Agitator spacer for vials, 20mL to 10mL, pk/6 Price on request