Professional 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.
Shipping & Delivery Information
Our Shipping Promise
At Slickpurchase, we understand how important your purchases are. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.
Processing & Shipping Timeline
- Processing Time: Orders are processed within 3-6 business days
- Domestic Delivery: Typically 6-10 business days
Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.
Shipping Destinations
Slickpurchase currently only ships to the United States.
Shipping Costs
We are pleased to offer free standard shipping on all orders within the United States.
Discreet Packaging
We respect your privacy. All Slickpurchase packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.
Signature Requirements
Important Note: All orders valued above $250 will require a signature upon delivery for your protection.
Order Tracking
Once your order ships, you'll receive a tracking number via email so you can monitor your shipment's progress every step of the way.
Lost or Delayed Shipments
If your package is lost or significantly delayed, please contact our support team immediately, and we will assist you in resolving the issue.
Additional Security Measures
For your protection, we may contact you for additional order verification of the payment method on certain orders.
Questions or Concerns?
For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@slickpurchase.com.

