◆Material: galvanized steel 

◆Size: W*H*L according to user needs 

◆Characteristic:

1. The muffler static pressure box has a muffling function, which can be installed at the outlet or inlet of the air-conditioner for static pressure, silence and wind separation. The inner wall of the muffler cavity is filled with 50mm thick centrifugal glass wool, covered with glass cloth and plated. Zinc perforated plate, keel is galvanized sheet.

2. Noise reduction: 5.5db (A)
3. Resistance loss: 35Pa (wind speed 6m/S)