Compare our 4 Metal Framed (Rigid) Permanent Filters
| Metal Filters | SILVER | GOLD | PLATINUM | MaxMERV9 |
| | | | | |
| Frame: | Galvanized | Aluminum | Aluminum | Aluminum |
| MERV Rating: | MERV 6 | MERV 8 | MERV 7 | MERV 9 |
| Resistance Rating: | 0.08" WG | 0.12" WG | 0.13" WG | 0.20" WG |
| Stages: | 3-Stage | 3-Stage | 5-Stage | 5-Stage |
| Construction: | Single Rivet | Screwed Frame | Double Rivets | Double Rivets |
| Low Resistance: | | | | |
| High Dust Capture: | | | | |
| Lifetime Warranty: | | | | |
| Features: | Popular | Balanced Filter | Heavy Duty | Corrugated Frame |
| Price starts at: | $59.99 | $99.99 | $119.99 | $64.99 |