Silicone rubber sealings, Septa for GL 14, pk/100 Back Catalog number: OST-LENZ01341214 Availability: In the manufacturer's stock Price on request - + Recommended M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request HEDPOL32_5L Polyester gas sampling bag with PTFE dual-valve, 5L Price on request