These 24 inch jawns are exacts of the Grover Stutter Tone.
The rear doesn't have the pin hole in the center of the Sound Unit though,nor is there any raised print on the sound unit.
The bell, stanchion, air inlet are just as the old Grovers. I haven't taken it apart yest because that sucka is azzhole tight!
But not truly noticeable on video- the sound is loud,crisp and clean.
So anyone not wanting another style of emergency horn for an upcoming apparatus purchase or just a horn replacement on a rig, I am recommending these.
And I turn tune an older Grover stuttertone