Heavy Duty Post Stiffeners

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 5/8" round O.D pipe = KNR-HDP4-158 Other sizes are available as special order.

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 7/8" round O.D pipe = KNR-HDP4178 Other sizes are available as special order.

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. 2 3/8" round O.D pipe = KNR-HDP4-238 Other sizes are available as special order.

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.

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 5/8" round O.D pipe = KNR-HDP5158 Other sizes are available as special order.

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 7/8" round O.D pipe = KNR-HDP5178 Other sizes are available as special order.

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. 2 3/8" round O.D pipe Other sizes are available as special order.

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 1/2" x 1 1/2" square = KNR-HDPS515SQ Other sizes are available as special order.

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. 2" x 2" square = KNR-HDP52SQ Other sizes are available as special order.

Allows fast installation of Aluminum posts to common steel fence posts. Reuse existing posts or drive new posts for fast, secure installation of Aluminum fence. Comes with mounting screw. .08 Aluminum post wall thickness 1 5/8" round O.D pipe = KNR-HDP25158 Other sizes are available as special order. Patent Pending! 1/19/24

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. 2" x 2" square = KNR-HDP42SQ Other sizes are available as special order.