I have a used Hunter 4 zone sprinkler control box for sale. I used it for 2 years since I bought this house for the front yard sprinklers no problem. This year we added sprinklers in the back and hooked them up to this. I found it to work well most of the times, however on several occasions after it went through all 4 zones it would return to zone 2 for some reason and water it more. As I had new sod I had 2 watering times daily for 3 zones in back and 1 watering time 4 times a week for the established front. I believe the glitch was related to the 2x per day waterings. I looked over my settings to ensure I had not programmed it wrong. I have the manual included. But the problem persisted. As I had to water daily twice a day for 2-3 weeks I bought a new timer. I believe this timer works well for 1 time a day watering for as many or as little days as you program it for a week. However I am fully disclosing the issue I faced and pricing this potential problem into the price. So buyer beware of a possible issue with programming. An alternative I employed was using the timer to box to do a manual one zone or all zones as well. And this method did not create any issues.