20x20x1 एल्यूमीनियम फ्रेम कस्टम प्री फिल्टर निर्माता के साथ प्लीटेड एचवीएसी एयर फिल्टर

Aluminum Frame HVAC Pleated Pre-Filter Factory Direct Custom Air Filter for AHU and Ventilation Systems Type HVAC Pleated Air Filter Filter Material Polyester Synthetic Fiber / Nonwoven Frame Material Aluminum Alloy Size Customized Shape Customized Filter Grade G4 / M5 / MERV 8 / MERV 11 / ...