Vinyl post caps are a stylish, economical choice for topping posts in a fencing project. With both internal and external fitting vinyl post caps, we have the right option for a wide range of fence colors and styles. Post caps protect the interior portion of a post, keeping water and other debris from penetrating the post, preventing build up and potential damage. Designed and manufactured by the leading name in the industry, LMT, these vinyl post caps are incredibly easy to install and once they're in place, bolster both a fence's look and performance. Vinyl post caps fit vinyl posts and wood posts differently, learn how to buy the right size every time here.