This remodel fitting can be easily screwed into any 1½" FPT and adds a ½" extension to the existing finish, making it perfect for any pool or spa remodel project. The extender is designed to finish flush with the surface, eliminating the need for costly removal of old fittings. It also features a built-in eyeball with four orifice sizes (1", ¾", ½", slotted) for optimal water flow. Additionally, multiple extenders can be stacked to achieve longer extensions. Made in the USA with UV-resistant ABS material and protected by US patent 8,250,682, this product is both durable and long-lasting.