---
product_id: 710268183
title: "ADI Ductulator – Duct Size Calculator"
brand: "air distribution institute"
price: "$53.74"
currency: USD
in_stock: true
reviews_count: 3
url: https://www.desertcart.ec/products/710268183-adi-ductulator-duct-size-calculator
store_origin: EC
region: Ecuador
---

# Quantifies pressure loss at 4%, 15%, 30% compression Includes fitting & connector efficiency charts Precision sizing for flexible ducts ADI Ductulator – Duct Size Calculator

**Brand:** air distribution institute
**Price:** $53.74
**Availability:** ✅ In Stock

## Summary

> 📐 Master airflow like a pro — don’t let duct compression slow you down!

## Quick Answers

- **What is this?** ADI Ductulator – Duct Size Calculator by air distribution institute
- **How much does it cost?** $53.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/710268183-adi-ductulator-duct-size-calculator)

## Best For

- air distribution institute enthusiasts

## Why This Product

- Trusted air distribution institute brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Sided Utility:** Front features a duct size calculator; back offers detailed charts for fittings and connectors.
- • **Comprehensive Sizing Tool:** Calculate the perfect duct size to overcome real-world bends, kinks, and sags.
- • **Trusted Industry Standard:** Developed by the Air Distribution Institute with prestigious university research backing.
- • **Optimize Airflow Efficiency:** Leverage research-backed data to minimize pressure loss and maximize CFM/FPM performance.
- • **Compression Impact Visualized:** Instantly see how 4%, 15%, and 30% duct compression affects airflow for smarter installations.

## Overview

The ADI Ductulator is a precision duct size calculator developed by the Air Distribution Institute, incorporating university research on flexible duct compression effects. It quantifies pressure loss at various compression levels (4%, 15%, 30%) and helps HVAC professionals select the optimal duct size to maintain efficient airflow despite real-world installation challenges like bends and sags. Featuring a dual-sided design with a calculator and fitting charts, it’s an essential tool for ensuring proper CFM and FPM in air distribution systems.

## Description

The ADI - Air Distribution Institute, was formed in 1947 to promote the use of fabricated steel duct pipe and fittings for air distribution products. Today the alliance of ADI member companies produce steel duct pipe and fittings designed to efficiently deliver conditioned air in your home and office. ADI sponsors independent third party research to accurately substantiate the superior benefits of Steel Air Distribution Systems. Get your ADI Ductulator today!

## Features

- The ADI Ductulator was created by the Air Distribution Institute based on research conducted by a prestigous university to study the effect of compression in flexible duct on air flow efficiency.
- The data provided on the ADI Ductulator shows research data obtained with flexible duct compressed 4%, 15% and 30% in length. These compressions, and others, were studied because flexible duct is typically not installed “fully stretched” and the resulting installation causes greater pressure loss and is far less efficient in air flow distribution.
- Typical installations are not in a straight line on a flat surface. The kinks, bends, sharp turns and sags of the typical installation increase pressure loss even more than represented by the ADI Ductulators data.
- Using the ADI Ductulator will help you choose the correct size flexible duct to overcome any adverse effects on pressure loss due to the compression and achieve proper CFM and FPM air flow.
- Along with the duct size calculator found on the front of the ADI Ductulator, you’ll find charts with commonly used fittings and other connectors on the back.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Air Distribution Institute |
| Product Dimensions | 11 x 8.5 x 0.1 inches |
| Item model number | ADI-CAL |
| Color | White |
| Included Components | Card |

## Images

![ADI Ductulator – Duct Size Calculator - Image 1](https://m.media-amazon.com/images/I/71x4qMN1PiL.jpg)
![ADI Ductulator – Duct Size Calculator - Image 2](https://m.media-amazon.com/images/I/81u2ea-uxxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Herramienta de HVAC
*by A***Y on August 15, 2025*

Súper buena herramienta y fácil de utilizar y necesaria para el trabajo de ductos de aire acondicionados,

### ⭐⭐⭐⭐⭐ Best Value
*by C***E on March 3, 2025*

This is the most complete Duct Size Calculator available, other than the ASHRAE version.It gives equivalent sizes for any combination of CFM, Velocity and Friction Loss in Round and Rectangular Sheet Metal Duct as well as Flexible Duct at three different compression installations.It is also the only Duct Size Calculator approved for use in the Texas State HVAC License Exam.

### ⭐⭐⭐⭐⭐ Great Duct Calculator
*by M***N on February 26, 2025*

Best ductulator on the market!

## Frequently Bought Together

- ADI Ductulator – Duct Size Calculator
- Air Duct Sizing Calculator
- REVISED AND UPDATED! HVAC Tables, Equations & Rules of Thumb Quick-Card

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**Shop now:** [https://www.desertcart.ec/products/710268183-adi-ductulator-duct-size-calculator](https://www.desertcart.ec/products/710268183-adi-ductulator-duct-size-calculator)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-22*