Inline Air Duct Noise Silencer (4 inch)
$29.99
Features:
- Two flanged ends that connect easily to ducting
- Polyurethane acoustic foam decreases fan noise by up to 50%
- Easy to install and maintenance free
- High-quality corrosion resistant galvanized steel sheet construction
- Moisture resistant – great for use in damp environment
Specifications:
- Outer Material: Durable galvanized steel sheet
- Sound Absorbing Foam: Wave crest polyurethane sponge
- Fusion Point of Foam: 250 degrees centigrade
- Size: 4” diameter and 12” long
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