Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! [Construction]: The threaded portion of this air release valve assembly is made from metal, ensuring exceptional durability and resistance to wear. Built to withstand high pressure and harsh pool environments, this component promises long-lasting performance. [Wide Compatibility]: Designed to fit a variety of pool filters, including DEV (DEV48, DEV60), Series (CL340, CL460, CL580), CV Series (CV340, CV460, CV580), and DEL Series (DEL48, DEL60). It also supports Series sand filters (JS60-SM, JS100-SM). Direct replacement for part numbers R0357200, 408788, 4580-003, 523370179096, 617081, TLD-101-6000. [Precision & Performance]: Engineered for accurate 0-60 PSI pressure readings, this back-mounted gauge features a sliding indicator for "clean" and "dirty" filter states, helping you maintain optimal filtration efficiency. The air bleed valve ensures effective back pressure clearance, and the scratch-, anti-glare dial face provides clear visibility even in challenging conditions. [Easy Installation & Maintenance]: This air relief valve assembly is designed for hassle-free installation and maintenance. Simply replace your old assembly to restore your system's efficiency and reliability. (The actual product may have slight color difference or difference, but it does not affect the use) Color: As shown Material: Metal Package Contents: 1set * Air Relief Assembly Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.