2 Inch O.D. Aluminum Post Extension 42 Inch

Aluminum post extensions are a great way to add additional length onto your dock post without buying new ones.  The post extensions come in 18 inch and 42 inch versions.  The tubing size is 2" O.D.  These are made to fit Alumi-Span aluminum tubing.  You need to have 1.85 inches clearance on the inside dimension of your tubing to use these.  If you are unsure of the brand of your tubing or it is a heavy wall version of the aluminum please call to confirm fit.