Booster system sizing can be difficult. That’s why there’s calQflo®.

calQflo® is the most efficient online booster system sizing and selection software. A FREE, revolutionary online configuration tool, calQflo matches your specs to the best system selections and solutions for your HVAC, construction or plumbing project to bring you excellent efficiency and revolutionary ROI.

With calQflo, inputting your project’s plumbing information is straightforward and easy. You can adjust your pump specifications at any time, and the plumbing system you need is selected from your specs, letting you focus on the other parts of your project. calQflo picks the most efficient booster option for your needs, allowing your system to run long into the future with maximum cost savings.

Create a FREE Account & Start Configuring TODAY!

calQflo is 100% free to use. Specify an unlimited number of projects, save your projects, and return any time day or night to access your work.

Start Sizing with calQflo

Benefits of calQflo include:
  • 100% Control and Spec Guarantee
  • Auto-Redundancy Calculator
  • CAD Drawing Library
  • calQflo selection
  • Easy-to-use
  • Energy Saving Calculators
  • Intuitive KwH Calculations
  • Lightning-Fast Submittal Creation
  • Mobile-Friendly
  • Product Longevity

20-50% Potential Energy Savings over Standard Sizing

Access calQflo


Water Harvesting & Reclamation

HVAC Packages


Start Sizing Today

Calculating for Your System Has Never Been Easier

The Industry’s First 5-Year Factory Warranty for Boosters

All QuantumFlo commercial booster systems feature a 5-year warranty against defects in materials and workmanship.

Learn More