Product Name: Bottom Mounted 3 Screw Tor Filter Cartridge Model NO.: DY-20066 Cartridge Installation: Vertical Lifting Filter Bag Environment: Temperature Filter Bag Sectional Shape: Flatbag Filtration Grade: ULPA Filter Usage: Dust Filter, Liquid Filter, Air Filter Type: Pocket Filter Filter Bag Filter: Outside the Filter Type Cartridge Filter: Non-Woven Polyester Fiber Medium Material: Cotton Material: Polyester Trademark: dy Transport Package: Carton Packing Specification: 370*410*690 Origin: Shanghai HS Code: 694211223 Product Description Air filter cartridge Performance Description:A. Wider pleat widthB. High filtration efficiencyC. Filter Material: 80%Cellulose+20% PolyesterD. Excellent ability for moisture protectionE. Top open, bottom open/ bottom close with deflating bolt holeF. Galvanized Stainless metal configurationG. Rubber sealH. We choose the moisture-proof material for the wet climate environment, also the material is suit for the large air flow designI. We choose the secondary filtration model for heavy dust density in the windy sand climate environment. Shower-proof felt and pre-filtration cloth needed in the pre-filtrationJ. More filter material you can choose1.100% cellulose (H&V material)2.80% cellulose+20%polyester (H&V material)3.80% cellulose+20%polyester Flame retardant (H&V material)4.Nano-web5. Nano-web Flame retardant6.Polyester(white,black for choose)7.Polyester+Flame retardant8.Polyester+oil,water resistant