... of clogging , if filters fast without contaminating and with good heat and chemical stability . The filter can remove most particulate ... specifications such as 1-core ,3-core , 5-core , 7-core , 9-core , 11-core , 13-core , 15-core . The length of folded filter core has 10 inch , ... 20 inch , 30 inch , 40 inch . The material of filter core has teflon , polysulfone , nylon ,pp and acetate .The hole ...