PTFE donut, 50 micron porosi
Chemglass PTFE donut, 50 micron porosi; Replacement Part for CG-2093-20 or CG-2093-21, PTFE donut, 50 micron porosity 19mm or 25.4mm - CHMGLS
Chemglass PTFE donut, 50 micron porosi; Replacement Part for CG-2093-20 or CG-2093-21, PTFE donut, 50 micron porosity 19mm or 25.4mm - CHMGLS