The PROCRAFT LHW-2 adapts a 1" Bolt-on High Frequency Driver to a 1-3/8" 18 TPI screw-on flare with a 1" diameter throat
The Adapter is 3-1/2" in diameter with a 4 bolt pattern.
* Easily drilled to mate with any horn.
This Adapter is made of High Impact ABS Plastic.