Silicone rubber sealings, Septa for GL 14, pk/100 Back Catalog number: OST-LENZ01341214 Availability: In the manufacturer's stock Price on request - + Recommended RMK-0020 Routine Maintenance Kit: Tube conditioner (TC-20) Price on request M-CHCT-250 Calibration tool for M-CTE250I, pk 4 Price on request T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request