Exhaust valve, 63.5 mm (2.5") diameter, closed, pressure-controlled, stainless steel

What’s Included:
- Flap control ø 63.5 mm 2.5", closed, pressure-controlled exhaust flap, stainless steel

Description:
- The flap is closed and opens when negative pressure is present
- Inner diameter ø 63.5 mm
- Outer diameter ø 74 mm
- Made of stainless steel
- Adjustable

Suitable for:
- Exhaust systems with a 63.5 mm diameter