This fitting screws into 1½" FPT, making it easy to install and connect to other plumbing components. The removable plaster cap prevents slurry from entering pipes during pool finish, keeping threads clean. It is great for old 1022 fitting remodels, as it adds ½" for new finish and eliminates the need for costly removal of old fittings. You can stack more than one extender for longer extension, making it a cost-effective solution. The large flange of this fitting camouflages pipe and surface construction variations, providing a sleek and finished look. Additionally, this fitting is made from UV-resistant ABS material, making it durable and long-lasting. With the option to purchase different orifice sizes suffix ¾"-B, ½"-C, slotted-D (i.e. MP101B = white ¾" orifice) and 125 fittings per case, this product is an ideal choice for swimming pool remodeling and finishing projects.