Stainless steel construction for best chemical compatibility and corrosion resistance. - Two styles of surface finish (both inside and outside): Electro-Polish or Bead blasted - Patent design of the Stainless steel Bag Filter Housing is to prevent bypass leakage. - Multi choice of seal material to meet different needs: Silicon rubber, EPDM rubber, Viton rubber; - 150 PSI (1.0Mpa) pressure available - Standardised flanges and threads: DIN, BSP, ANSI - Micron Ratings: 1-100micron - Custom designs available.