4.28" Diameter White PTFE
Chemglass 4.28" Diameter White PTFE; Support Ring, Teflon, White, Round, 2.35" ID x 4.28" OD x 1.2" High - CHMGLS
Chemglass 4.28" Diameter White PTFE; Support Ring, Teflon, White, Round, 2.35" ID x 4.28" OD x 1.2" High - CHMGLS