POST TO PIPE ADAPTER DONUT 2 3/8" X 5" X 5"   The uNi-5™ Say goodbye to flimsy plastic donuts and hello to a smarter, sturdier way to set vinyl posts. The uNi-5™ is built to last, making installs cleaner, faster, and stronger every single time. What makes the uNi-5™ different: Heavy-duty steel construction – won’t crack, split, or buckle under pressure One size fits most – designed to work across multiple vinyl post thicknesses Find it instantly – includes a magnet tool so you know exactly where it sits inside the post Cleaner results – no more drilling extra holes just to hunt for a donut Boosts efficiency – simple, repeatable steps crews can rely on Locked-in strength – secure posts with ¼” rivets instead of wrestling with long screws Twist-proof design – square shape delivers full contact inside the post and prevents movement The uNi-5™ makes vinyl fence installs stronger, simpler, and stress-free. CHECK OUT OUR VIDEO: https://www.youtube.com/watch?v=ZjAfbmTWcPM