Choose between 3M™ 740 Filter Cartridges or 3M™ 720 Filter Cartridges depending on your industrial filtration needs. 3M 740 series cartridges are used in filter housings that accept a 6.5 inch/165 mm outer diameter, 226 O-ring connections and are available in 40 inch/1010 mm and 30 inch/760 mm length filter cartridges. 720 series cartridges are used in filter housings that accept 7 inch/180 mm outer diameter, 226 O-ring connections and are available in 28 inch/710 mm length filter cartridges. Polypropylene microfiber forms the basis of the filtration media we use in the 700 series filter cartridges. Our manufacturing processes allow for tightly controlled specifications resulting in a filter media with consistent and predictable particle retention characteristics. Polypropylene provides broad chemical compatibility for use in a variety of applications.

We produce 740 series cartridges in two configurations – “B” and “K.” The “B” versions contain the maximum amount of filter media surface area for those applications where high contaminant holding capacity is needed. The “K” versions contain an optimised amount of filter media surface area (60% - 70% of ‘B” versions) for those applications that benefit from a low unit cost filter design. In “B” and “K” versions, the microfiber media is pleated in a compound radial design that optimises the usable surface area of the filter cartridges. The 740 series cartridges also incorporate polypropylene end caps, outer sleeves and cores to protect the pleat structure and provide durability. A double O-ring seal helps reduce the risk of fluid bypass. Work with your local distributor to find the appropriate filter and housing for your application.