Drain Line Flow Control Buttons are used to limit the amount of drainage per minute to allow for proper backwash rates and retention in the tank.
| PART NUMBER | FLOW RATE | TYPICAL USAGE |
| 12085 | 1.2 GPM | 6″ or 7″ Diameter Softener Tanks |
| 12086 | 1.5 GPM | 8″ Diameter Softener Tanks |
| 12087 | 2.0 GPM | 9″ Diameter Softener Tanks |
| 12088 | 2.4 GPM | 10″ Diameter Softener Tanks |
| 12089 | 3.0 GPM | Used in a variety of applications including 10″ /12″ Diameter Softener tanks |
| 12090 | 3.5 GPM | 12″ Diameter Softener Tanks |
| 12091 | 4.0 GPM | 13″ Diameter Softener Tanks |
| 12092 | 5.0 GPM | 14″ Diameter Softener Tanks and Carbon Filter Tanks |
| 12408 | 7.0 GPM | 16″ Diameter Softener Tanks. Also in 10″ , 12″, and 13″ tanks used for MGS ( Green Sand ), Acid Neutralizing Media ( like Calcite ) and Carbon Back Wash Filter applications |
