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 OST-LENZ01341214 Silicone rubber sealings, Septa for GL 14, pk/100 Price on request T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request U-COV06 O-Ring, Size 006, pk/10 Price on request