PRE FILTER PRE FILTER | FILTER CLASSES G1 > G4 - MERV 1 > MERV 8 MODEL | MetallicTYPE | Stainless Steel Air Filter MEDIA | Woven Stainless Steel Mesh SPECS | 6 | 10 MM-1” | 2” | 4” | G1>G2 MODEL | AluminumTYPE | Aluminum Filter – GI Frame MEDIA | Aluminum Filter – GI Frame SPECS | 6 | 10 MM-1” | 2” | 4” | G1>G2 MODEL | Aluminum TYPE | Aluminum Filter – Alum Frame MEDIA | Expanded Aluminum Mesh SPECS | 6 | 10 MM-1” | 2” | 4” | G1>G2 MODEL | V-Fan PolyTYPE | Synthetic V-Type G4 MEDIA | Synthetic Media SPECS | 1” | 2” | 4”G3 MODEL | V-Fan PolyTYPE | Synthetic V-Type G3 MEDIA | Synthetic Media SPECS | 1” | 2” | 4”G3 MODEL | Aluminum CorrugatedTYPE | Aluminum Or GI Mesh Filter MEDIA | Wire Mesh Screen SPECS | 6 | 10 MM-1” | 2” | 4” | G1>G2 MODEL | F-PanTYPE | Glass Fiber Panel Filter MEDIA | Lofted Glass Fiber SPECS | 1” | 2” | 4” G3>G4 MODEL | AirPleatTYPE | Pleated Air Filter MEDIA | Synthetic Media SPECS | 1” | 2” | 4” G4 MODEL | Fan PolyTYPE | Synthetic Flat Filter MEDIA | Synthetic Media SPECS | 1” | 2” | 4” | G3>G4