Gaskets *other gasket materials on request    Housing gasket FPM* on request order            Housing parts    Head without venting Rp 3/8" on request order    Head without venting Rp 1/2" on request order    Head with venting Rp 3/8" on request order    Head with venting Rp 1/2" on request order    Polypropylene sump (blue) 5" on request order    Polypropylene sump (blue) 10" on request order    SAN sump (transparent) 5" on request order    SAN sump (transparent) 10" on request order Suitable filter elements: Depth filter up to 90% retention rate .       . Depth filter up to 99,9% retention rate .   . Stainless steel filter cartridges .     . Original-Filter cartridges from 3M .       Brief description: The filter housings of the type FFU Q20-SL and Q30-SL FFU exist of Polypropylene (PP) and correspond to the FDA regulations. They take up a single filter cartridge with a length of 124 mm or 251 mm. The material is extremely continual compared with acids free of oxidation like hydrochloric acid and sulfuric acid up to 70% of concentration, as well as compared with salt solutions, liquid hydrocarbons, alcohols and concentrated lyes. The housings Q25-SL FFU and Q35-SL FFU have the same case head from Polypropylene, however, the marsh exists of styrene acrylonitrile (SAN). These housings are used to the filtration by water and watered acids at temperatures below 40°C.