The CPT-4 is an ultra high-pressure, lightweight, 4-stage centrifugal pump, able to produce high-pressure fog while the pumper is in motion or stationary.

The T Series Transmission uses an SAE bellhousing to mount the pump directly to the engine.

Request More Information


  • Ni-resist; special “stepped” designed wear rings reduce internal leakage & increase efficiency
  • Bronze, hydraulically and mechanically balanced impellers
  • Impeller hubs are “stepped” to minimize internal bypass
  • High-tensile, close-grained gray iron (bronze/gunmetal optional), two-piece, horizontally-split volute body
  • Adjustable braided flexible graphite (BFG) packing
  • Available with either clockwise or counter-clockwise rotation of input shaft
  • T Series Transmission consists of an aluminum case with constant-mesh, stainless steel helical gears


 CPT-4 Series 
Pump Information Transmission Information
Dimensional Drawings
Data Sheet
Service Parts Lists
Preferred Specifications
Spec Sheets
Performance Sheet
Performance Curve
 Dimensional Drawings
Data Sheet
 Service Parts Lists
Specification Sheet
Miscellaneous Items


Sales/Application/Service Help

Industry-leading sales and support.

When you purchase Waterous equipment, not only do you get quality products, you get quality service. Our expert service technicians are the best in the business and they are always happy to answer any service questions you might have. The numbers for our service and training specialists are listed below for your convenience. If you have a general service question please call our main number and our staff will kindly direct you to the appropriate department.

Sales/Applications Assistance

Phone: 651-450-5234 (Press 3)


Service Assistance
Phone: 651-450-5200
Fax: 800-488-1228