4" x 4" Heavy Duty Post Stiffeners for 1 1/2" SQ Post
Allows fast installation of vinyl posts to common steel fence posts. Reuse existing posts or drive new posts for fast, secure installation of PVC fence. Comes with bolt, nut, and washer.
1.5" x 1.5" square = KNR-HDP415
Other sizes are available as special order.