5 mm Graphite Seal for Thermo Trace GC (2/pk)

100% graphite ferrule encased in metal ring; upper temperature limit 450 deg. C. Soft; reusable if not overtightened. Packaged: 2-3/8 in. x 1-1/4 in. x 1/2 in. Plastic Hinged Box; Weight 5.7 g.