For use with Plenum rated F1-11437 and F1-11437S innerduct only.Just snap in corrugated innerduct on each side to extend.
- Diameter: 1 inch
- Socket on both sides
$3.13
In stock
For use with Plenum rated F1-11437 and F1-11437S innerduct only.Just snap in corrugated innerduct on each side to extend.