Silicone rubber sealings, Septa for GL 14, pk/100 Back Catalog number: OST-LENZ01341214 Availability: In the manufacturer's stock Price on request - + Recommended H1-AXABC HiSorb probe, inert, short, pk/6 Price on request C-CRCK Canister Rack Connection Kit, for connecting 15 x 1/4" outlet canisters to U-RACK02 Price on request M-DSK15-250 Spacer disc, alum, 1.5mm, for M-CTE250I,pk 24 Price on request