10 20 30 40 inch Replacement Polypropylene fine filter depth cartridge filters with hairy orange groove smooth surface Quotation is for reference only, please send us the specification requirement, and we will update you the best price. Package 10 inch: 50PCS/CTN 400*400*685mm 20 inch: 25PCS/CTN 400*400*685mm 30 inch: 25PCS/CTN 835*435*425mm 40 inch: 25PCS/CTN 1100*395*400mm