Features an anti-microbial agent to prevent mold and bacteria and has a size of 4".
Features an anti-microbial agent to prevent mold and bacteria and has a size of 4".
The home balancing valve has 20 or 24 adjustable CFM set points.
Features
| Outside Diameter (Rubber Gasket) | 3.8" (97 mm) | 
| Height | 3.5" (88 mm) | 
| Number of Unique Set Points (CFM) | 20 | 
| Airflow Range (CFM) | 25-130 CFM | 
| Airflow Accuracy Range | ±10% within 0.2" to 1.0 | 
| Temperature Range (Suitable Applications) | 25 to 150°F (-4 to 65°C) | 
| Static Pressure Range | 0.2 to 2" w.c | 
| Rubber Gasket (Insertion Into Round Duct) | Reversible - Use on either end | 
| UL Tested & Classified | UL 2043 | 
| Dimension (L x W x H) | 4.3 x 4.3 x 3.6" (11 x 11 x 9 cm) | 
| Warranty | 1 Year | 
| Outside Diameter (Rubber Gasket) | 3.8" (97 mm) | 
| Height | 3.5" (88 mm) | 
| Number of Unique Set Points (CFM) | 20 | 
| Airflow Range (CFM) | 25-130 CFM | 
| Airflow Accuracy Range | ±10% within 0.2" to 1.0 | 
| Temperature Range (Suitable Applications) | 25 to 150°F (-4 to 65°C) | 
| Static Pressure Range | 0.2 to 2" w.c | 
| Rubber Gasket (Insertion Into Round Duct) | Reversible - Use on either end | 
| UL Tested & Classified | UL 2043 | 
| Dimension (L x W x H) | 4.3 x 4.3 x 3.6" (11 x 11 x 9 cm) | 
| Warranty | 1 Year |