Silicone rubber sealings, Septa for GL 14, pk/100 Back Catalog number: OST-LENZ01341214 Availability: In the manufacturer's stock Price on request - + Recommended T-7CUS cust packed cold trap, TT24-7 Price on request U-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request P-CPP10 Blanking plugs, for VOC-Mole cap assembly,pk10 Price on request