---
product_id: 57829839
title: "Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3)"
brand: "suncourt"
price: "NT$13517"
currency: TWD
in_stock: true
reviews_count: 13
url: https://www.desertcart.tw/products/57829839-suncourt-radon-mitigation-system-kit-for-sub-slab-depressurization-basements
store_origin: TW
region: Taiwan
---

# 200 CFM airflow Ultra-quiet operation Easy installation kit Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3)

**Brand:** suncourt
**Price:** NT$13517
**Availability:** ✅ In Stock

## Summary

> 💨 Breathe easy, live safer — radon protection that works silently in the background

## Quick Answers

- **What is this?** Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) by suncourt
- **How much does it cost?** NT$13517 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/57829839-suncourt-radon-mitigation-system-kit-for-sub-slab-depressurization-basements)

## Best For

- suncourt enthusiasts

## Why This Product

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

## Key Features

- • **Indoor & Outdoor Rated:** Versatile design meets EPA standards for any basement or crawlspace
- • **Plug & Play Installation:** Includes anti-vibration couplers & manometer for hassle-free setup
- • **Powerful 200 CFM Airflow:** Efficiently lowers radon levels with strong sub-slab suction
- • **Whisper-Quiet Performance:** Engineered in the USA for near-silent operation—peaceful home guaranteed
- • **Built to Last with 5-Year Warranty:** MET certified, thermally protected brushless motor ensures reliable 24/7 radon defense

## Overview

The Suncourt RDK04-3 Radon Mitigation System Kit is a high-efficiency, brushless motor fan designed for continuous sub-slab depressurization in basements and crawlspaces. Delivering 200 CFM airflow with ultra-quiet operation, it includes anti-vibration couplers and a manometer for easy installation. Rated for indoor/outdoor use and backed by a 5-year warranty, this MET-certified system ensures reliable, long-term radon reduction to protect your home environment.

## Description

Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) - desertcart.com

Review: Super quiet! - I ought this to replace an identical fan that started making noise after 9 years of continuous use. It installed easily, and is barely louder than a whisper. It vents our crawl space and does a great job Highly recommend this Centrax fan.
Review: Working as expected. - TF104-CRD is supposed to be the version with a cord however what was received (twice) was the version without the cord. Not a big deal but they should post the correct model # TF104 (This was when this listing was from National Trade Supply, LLC). Good value. Performs as expected so far. Purchased another unit for another bath fan. I hope these will last beyond their 5 year warranty. But since they have only been making them for ~5 years (2012) no way of telling. Seems to be of similar construction as similar in-line fans but no way to tell how well the bearings will last. However as a bath fan (intermittent) vs radon (continuous) fan I hope they will last a long time. Mounting bracket is included. No cable grip included. Comes with 3 position screw terminal for attaching power. Update: After 4 years the fan are still operating as expected. However I did notice that this review and the link from my previous purchases goes to this new listing. I find it interesting that desertcart will move the reviews from one vendor to another. Not very quite if the duct length to the fan is short 10' - I Original installed this fan in-line at the end of a 40+' run (crazy I don't know what the home builder was thinking) and it was fairly quite but after moving it to a new roof vent closer to the bathroom it is as loud as a Broan 690 upgrade. I may try to put a speed control on it to slow it down as this bathroom is small and does not need the full airflow of the fan.

## Features

- COMPLETE RADON FAN KIT: The Suncourt RDK04 Radon Mitigation System Kit or Active Soil Depressurization Fan (ASD Fan) effectively lowers radon levels through sub-slab depressurization in homes with basements, crawl spaces, or cement slab foundations.
- ULTRA-QUIET OPERATION: Engineered and assembled in the USA for minimal noise, this powerful yet quiet radon mitigation fan generates strong suction and airflow.
- RELIABLE 24/7 PROTECTION: Engineered for continuous, long-term use, Suncourt’s radon fan is rated for installation either indoors (above living spaces, like attics) or outdoors, per EPA standards.
- EASY INSTALLATION: Includes one 4" Centrax Centrifugal Fan; two 4” to 3” anti-vibration rubber couplers for a secure, vibration-free connection between the fan and PVC piping; and one air pressure indicator to monitor system performance.
- DURABLE & RELIABLE: Delivering trusted performance since 1988, Suncourt’s radon mitigation solutions are independently certified by MET Laboratories to meet UL 507 and CSA safety standards and are backed by a 5 year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0120UNUYK |
| Air Flow Capacity | 200 Cubic Feet Per Minute |
| Best Sellers Rank | #242,013 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #749 in Household Ventilation Fans |
| Brand | Suncourt |
| Color | White |
| Control Method | App |
| Customer Reviews | 4.3 4.3 out of 5 stars (180) |
| Date First Available | July 16, 2015 |
| Efficiency | High Efficiency |
| Electric fan design | Exhaust Fan |
| Finish Type | Resin |
| Included Components | 4-inch Centrax Centrifugal fan, anti-vibration PVC rubber couplers, air pressure indicator |
| Indoor/Outdoor Usage | Indoor |
| Installation Type | floor_mount |
| Is Cordless? | No |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6 pounds |
| Item model number | RDK04-3 |
| Main Power Connector Type | Standard electrical plug (US) |
| Manufacturer | Suncourt |
| Model Name | RDK04-3 |
| Motor Type | Brushless |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 4"D x 10.5"W x 9.5"H |
| Recommended Uses For Product | Air Circulation |
| Room Type | Bedroom, Living Room |
| Size | Fits 4" to 3" (RDK04-3) |
| Special Feature | 5 Year Warranty, Easy Installation, Energy Efficient, Indoor/Outdoor Use, Thermally Protected Motor |
| Specification Met | MET Listed |
| Style | RDK04-3 |
| Switch Type | Push Button |
| UPC | 066028034052 |
| Voltage | 230 Volts (AC) |
| Wattage | 77 watts |

## Product Details

- **Brand:** Suncourt
- **Color:** White
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Floor Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 4"D x 10.5"W x 9.5"H
- **Recommended Uses For Product:** Air Circulation
- **Room Type:** Bedroom, Living Room
- **Special Feature:** 5 Year Warranty, Easy Installation, Energy Efficient, Indoor/Outdoor Use, Thermally Protected Motor
- **Style:** RDK04-3

## Images

![Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) - Image 1](https://m.media-amazon.com/images/I/71p7Q6Owd-L.jpg)
![Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) - Image 2](https://m.media-amazon.com/images/I/81UHe5UARFL.jpg)
![Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) - Image 3](https://m.media-amazon.com/images/I/81FoQedAMNL.jpg)
![Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) - Image 4](https://m.media-amazon.com/images/I/819jfYztk-L.jpg)
![Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3) - Image 5](https://m.media-amazon.com/images/I/81jcdsawvdL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this come with installation instructions and a power cord?**
A: It does not come with power cord. You need to wire it.

**Q: how many cfm's is this unit?**
A: 200 cfm

**Q: Does this kit have the labels that are needed**
A: This kit has a label for the manometer.

**Q: Can this be mounted horizontal or vertical ?**
A: Shoukd be mounted vertically.  I have never seen a radon mitrgation with the fan mounted horizontally

## Customer Reviews

### ⭐⭐⭐⭐⭐ Super quiet!
*by B***D on October 17, 2025*

I ought this to replace an identical fan that started making noise after 9 years of continuous use. It installed easily, and is barely louder than a whisper. It vents our crawl space and does a great job Highly recommend this Centrax fan.

### ⭐⭐⭐⭐⭐ Working as expected.
*by S***D on October 3, 2012*

TF104-CRD is supposed to be the version with a cord however what was received (twice) was the version without the cord. Not a big deal but they should post the correct model # TF104 (This was when this listing was from National Trade Supply, LLC). Good value. Performs as expected so far. Purchased another unit for another bath fan. I hope these will last beyond their 5 year warranty. But since they have only been making them for ~5 years (2012) no way of telling. Seems to be of similar construction as similar in-line fans but no way to tell how well the bearings will last. However as a bath fan (intermittent) vs radon (continuous) fan I hope they will last a long time. Mounting bracket is included. No cable grip included. Comes with 3 position screw terminal for attaching power. Update: After 4 years the fan are still operating as expected. However I did notice that this review and the link from my previous purchases goes to this new listing. I find it interesting that Amazon will move the reviews from one vendor to another. Not very quite if the duct length to the fan is short 10' - I Original installed this fan in-line at the end of a 40+' run (crazy I don't know what the home builder was thinking) and it was fairly quite but after moving it to a new roof vent closer to the bathroom it is as loud as a Broan 690 upgrade. I may try to put a speed control on it to slow it down as this bathroom is small and does not need the full airflow of the fan.

### ⭐⭐⭐⭐⭐ Radon levels dropped instantly!
*by E***N on September 20, 2023*

Easy to install! The instructions were good, even showing the PVC fittings that were needed to construct the mitigation system, all of which were available at my local home improvement store. We have seen the levels of radon go down significantly since we installed this. We would highly recommend this product! Well worth the money spent to keep our family safe!

## Frequently Bought Together

- Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3)
- Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
- Jackel Black Submersible Sump Cover (Model: SMR16101-CV)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-17*