1. x x Enhanced Compatibility x x : Fully compatible with part numbers 521593, 902175, and 9237-192. Works seamlessly with EasyTouch PL4/PSL4 and IntelliTouch i5and3 systems for optimal pool control. 2. x x Superior Quality x x : materials and advanced manufacturing ensure excellent insulation and anti-leakage performance for reliable pool system management. 3. x x Efficient Pool Control x x : Designed for smooth operation, allowing easy management of pool functions for optimal performance. 4. x x Advanced Technology x x : Features a Stabilizer Power Module with high-grade filtering capacitors and quality power chips, delivering pure DC power and precise output control. x x Type x x : Hand Tool Parts x x Model x x : 521218 x x Specifications x x : 521218 x x Note x x : Product appearance may vary slightly by batch but does not affect functionality. x x Color x x : Green x x Material x x : PCB x x Package Includes x x : 1 �� Surge Board x Disclaimer: Slight color variations may occur due to lighting or display settings. Measurement tolerance: 1-3cm. x Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store