FA BIG 10" SX Filter Cartridge - 25 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 25 MicronRE5115511- FA BIG 10 SX 25 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 polyp