| Model | Flow Capacity | Hot Water Outlet Connection Size |
| DRV25G | 40 gpm (150 lpm) | 1″ (25 mm) |
| DRV40G | 79 gpm (300 lpm) | 1-1/2″ (38 mm) |
| DRV80G | 159 gpm (600 lpm) | 3″ (76 mm) |
Engineered exclusively for continuously recirculated hot water systems, The Brain® improves system performance and safety by delivering a consistent pre-set temperature to the points of use.
