Product Name: Simple Cartridge 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.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 resistantproduct standard