FA BIG 20" SX Filter Cartridge - 5 micron INSTALLATION & USE Please note: If we do not have stock available to fulfil your order we may send an equivalent product of equal or better specifications.   Atlas Filtri FA BIG Polypropylene Wound Thread Cartridge - for Sediment Filtration down to 5 MicronRE5117508 - FA BIG 10 SX 5 mcrAtlas Filtri 4.50" OD filter cartridges made with polypropylene thread wound on polypropylene inner core, designed to fit to DP BIG housings and respond to the most effective heavy-duty sediment filtration requirements, suitable for industrial as well as domestic applications.- All SX sediment cartridges now have the brand new grey flat gaskets with antimicrobial protection to fight the risk of microbial attack- Quick-fitting double o-ring cartridges ensure a perfect watertight fit , simple for maintenance operations, elimination of wrong positioning and safer for micro-filtration.- FA filter cartridges are made with polypropylene thread wound on polypro