Quick Details ? Condition: New ? Efficiency: G4 ? Construction: roll media ? Filtration Grade: Pre Filter ? Medium Material: Fiberglass ? Porosity: 0 ? Place of Origin: Guangdong, China (Mainland) ? Brand Name: longwell ? Model Number: AR-50 ? Dimension(L*W*H): 1.45*20m ? Weight: 6kg ? Certification: ISO CE ? Warranty: 360 ? After-sales Service Provided: Overseas third-party support available Our Roll-O-Mat white is made up of top quality fiberglass media. Resin-bonded fibers on the air entering side are interlaced in an open pattern which becomes progressively tighter. This construction prevents faceloading and increases arrestance and dust holding capacity. A series of flexible glass scrim running the length of the roll provide supplemental support while strands on the air leaving side provide high tensile strength. The glass fibers are coated with a medium application of Vicosine gel. Viscosine is a non-toxic, non-flammable adhesive that helps prevent particles from breaking away and flowing downstream. White Roll-O-Mat media is designed for use in all models of the LWF Roll-O-Matic automatic roll filters. It is also designed for use in most competitive automatic roll filters. The white media can be used as a primary filter in general air filtration applications or as a prefilter to higher efficiency filters. Details Filter Depth: 2" Max Temperature: 175° F UL Class: 2 Filter Type: Auto-Roll Header: No Antimicrobial: No