Outside bell.
via flow switch is only alarm

Two separate houses
Anti Freeze System

283 Norfolk Ave
Park City 84060
2nd to last house B4
dead-End
Debra Brabender
(435) 655-1090

From RASCO:
Good Morning Arun, 

Tech let me know that the replacement for the ZX Res is the F1RES and RFC.
 They may be reaching out to you today.

Joel Wheelersburg, Inside Sales
Reliable Automatic Sprinkler Co., Inc.
2256 N Pagosa St, #100, Aurora, CO, 80011
Tel: 877.440.2598   

9:06 AM 3/1/2021
Asked Rafael for 4.1 info