This is a 12-pins control box for the Autofill system. This 12-pin model is for black control box for Spa Chairs 2018-2021.

Disclaimer: This is not the control box for newer 2022 chairs with the air-jet functionality.
To replace control box for 2022 chairs with air-jets, please see Control Box - Auto-Fill 22.0 (Dual Jet)

To replace control box for older chairs, please contact support.

Related Troubleshooting Guide: ECOJET DOES NOT WORK