Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: POL32_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T11GPC-2S Unity 2/TD-100 Cold Trap carbon C4/5-C30/32 Price on request M-MCAL50 Disposable dish, alum, 50mL,pk100 Price on request U-COV10 O-Ring, low-emission,size 010, pk10(e2/e3 systems) Price on request