Phoenix Manufacturing PDP12-1 Automatic Programmable Drain Pump, Compatible with Any Evaporative Cooler Product Description Phoenix Manufacturing PDP12-1 Automatic Programmable Drain Pump, Compatible with Any Evaporative Cooler. Until now the best means of keeping your cooler clean was to use a ?bleed-off? system, which simply drains off a percentage of water as the cooler operates. Today, by replacing the ?bleed-off? with the innovative Automatic Programmable Drain Pump (PDP) by Phoenix Manufacturing, you can save as much as 3000 gallons of water per month ? enough to fill a standard swimming pool ? in just one cooling season! That translates into real dollar savings while conserving a substantial amount of water (as much as 80%). Our PDP12-1 will function with any manufacturer?s evaporative cooler, but because of PMI?s low sump pump technology, the PDP12-1 performs best with PMI products. Features and benefits; the PDP12-1 has easy plug-in installation, prevents mineral build-up, reduces bacterial growth, extends pad life, reduces maintenance, improves efficiency, and eliminates chemical additives and cleaners. With the PDP12-1 installed, it will automatically provide fresh water to your evaporative air cooler every 2, 4, 6, or 8 hours (based on your settings). Full 2-year warranty and U/L recognized U.S. Patent# 5,527,15. From the Manufacturer Phoenix Manufacturing PDP12-1 Automatic Programmable Drain Pump, Compatible with Any Evaporative Cooler. Until now the best means of keeping your cooler clean was to use a ?bleed-off? system, which simply drains off a percentage of water as the cooler operates. Today, by replacing the ?bleed-off? with the innovative Automatic Programmable Drain Pump (PDP) by Phoenix Manufacturing, you can save as much as 3000 gallons of water per month ? enough to fill a standard swimming pool ? in just one cooling season! That translates into real dollar savings while conserving a substantial amount of water (as much as 80%). Our PDP12-1 will function with any manufacturer?s evaporative cooler, but because of PMI?s low sump pump technology, the PDP12-1 performs best with PMI products. Features and benefits; the PDP12-1 has easy plug-in installation, prevents mineral build-up, reduces bacterial growth, extends pad life, reduces maintenance, improves efficiency, and eliminates chemical additives and cleaners. With the PDP12-1 installed, it will automatically provide fresh water to your evaporative air cooler every 2, 4, 6, or 8 hours (based on your settings). Full 2-year warranty and U/L recognized U.S. Patent# 5,527,15. Features 8-custom cleaning cycles, prevents mineral buildup; reduces bacterial growth Extends pad life - reduces maintenance - improves efficiency Can help save over 3000 gallons of water per month as compared to bleed-off, easy plug in installation Replaces any plug-in cooler purge pump and can be used with any plug-in cooler recirculation pump, can also be used in place of any drain pump Made in USA, 2-year warranty USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.