{"product_id":"rectoo-4x4-vinyl-post-caps-white-actual-4-00-internal-size-not-for-wood-posts-pyramid-top-toppers-for-fences-decks-mailb","title":"RECTOO 4x4 Vinyl Post Caps White (Actual 4.00 Internal Size - NOT for Wood Posts), Pyramid Top Toppers for Fences, Decks \u0026 Mailb","description":"\u003cp\u003eProfessional Physical Protection for Your Vinyl Fencing System Leaving your vinyl posts open exposes them to rain collection and debris buildup, which can compromise your fence's stability. Our RECTOO 4x4 Vinyl Post Caps provide a precise seal with a classic, low-profile pyramid design. It is the essential final detail that turns a standard fence installation into a polished, finished look. Q: Will these caps fit standard 4x4 wooden posts? A: NO. This is a common sizing mistake. Standard 4x4 wood posts measure 3.5 x 3.5. These caps are precision-molded to fit True 4.00 x 4.00 hollow vinyl sleeves or posts only. Please measure the outside diameter of your post before ordering. Q: How do these caps protect my outdoor fence? A: By sealing the top of the hollow post, these caps act as a waterproof barrier that prevents rain and snow from entering the interior. This physical protection helps prevent water accumulation and internal post degradation over time. Q: What is the best way to install them? A: These are slide-over external sleeve caps. They feature a 7\/8 (0.875) deep skirt for a stable fit. For permanent security in high-wind areas, we recommend applying a small amount of clear outdoor silicone (not included) to the inner rim before sliding them on. Technical Specifications: - Internal Dimensions: Actual 4.00 x 4.00 (Internal Diameter) - External Height: 1.77 (45mm) - Skirt\/Apron Depth: 0.875 (7\/8) - Material: Durable Fence-Grade Vinyl \/ PVC - Geometric Style: 4-Facet Pyramid - Compatibility: Fits Hollow Vinyl\/PVC Posts Only - Warranty: 2-Year Manufacturer Warranty Constructed from impact-resistant vinyl, these caps are designed for reliable outdoor performance. They provide a sturdy, waterproof shield for your deck, porch, or mailbox posts.\u003c\/p\u003e","brand":"RECTOO","offers":[{"title":"Default Title","offer_id":45186680193139,"sku":"WBHDWB0FY3VBG8D","price":39.33,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/1958\/6419\/files\/61qT4RlDTjL.jpg?v=1783434295","url":"https:\/\/slickpurchase.com\/products\/rectoo-4x4-vinyl-post-caps-white-actual-4-00-internal-size-not-for-wood-posts-pyramid-top-toppers-for-fences-decks-mailb","provider":"Slickpurchase","version":"1.0","type":"link"}