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 P-FORMR Brass impact former Price on request P-CP010 VOC-Mole cap assembly,pk10 Price on request C-POD-KIT01-5TD POD Starter Kit: Carbograph 5TD Price on request