Threaded compression driver is compatible with horns having standard 1-3/8" x 18TPI threads.
53-970 - Threaded Midrange Tweeter ABS Horn Lens
ABS Compression Horn Lens
Molded ABS resin lens is ideal for all high frequency compression drivers.
Order was ready for Will-Call pick-up when promised and all items and quantities were correct and in the bag! Smooth transaction. Thanks!