HFS (R) 3" Silicon TriClamp 100mesh Viton Screen (2000 Micron) Fits Tri-Clamp: 3" Material: Viton Temperature Range: -15F - 400F Highly resistant to Vacuum, Most Acids / Chemicals, Halogenated Hydrocarbons, Di-Ester, Lubricants, Petroleum Oils / Fuels, Silicone Oils / Greases 150 Micron Screen