| Model | Flow Capacity | Hot Water Outlet Connection Size |
| DRV25 | 45 gpm (170 lpm) | 1″ (25 mm) |
| DRV40 | 98 gpm (371 lpm) | 1-1/2″ (40 mm) |
| DRV50 | 188 gpm (712 lpm) | 2″ (50 mm) |
| DRV80 | 188 gpm (712 lpm) | 3″ (80 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.
