Ultra-longment filter cartridge is a new product developed by Darlly Filter Equipment Co. In Hangzhou China. Its filter media is continuous wound fiber with high performances. The length of the cartridge is up to 70inch (1778mm), the large length with big filter area insures to reduce the number of filter cartridges and the dimention of housing required...The long service life and high flowrate result in low investment and less manpowert in many applications Length up to 70inch (1778mm), suitable for high flow/high contaminant applications High mechanical strength, no distortion happen even in critical process conditions Directly installed into exsited housings, no need for any changes