ATS-GDS Replacement Control Box.

Features:

- LED Visual & Audible Alarms
- Monthly Countdown Timer
- 30 Day Replacement Alarm
- UV Lamp out Alarm
- Shutoff Solenoid Valve Connection (solenoid sold separately) 
- Build in Surge Protector 
- Replaceable 3 Amp Fuse
 - Splash Proof Plastic Injection Molded Box
 
Direct Replacement for EV, GDS, and PFC Series for 8GPM, 12GPM and 20GPM (gallons per minute).