Hard to find part.
This is a 4 wire connector used for many hayward Pro logic and aqualogic display panels (and possibly other accessories)
Works with below Keypad Display :
GLX-PL-LOC-PS4, PS8 and PS16
GLX-LOCAL-P-4
GLX-LOCAL-PS4, PS6, PS8, PS16
May be suitable for other 4 pin models not listed as well