A good Radon fan is an important part of a sump pump system. Two of the most popular fans on the market are the RadonAway RP140 and the RP145. Both of these Radon fans are very similar but have a few key differences that set them apart!
In this post our team of experts checked out the similarities, differences plus the pro’s and con’s of each model – keep reading to find our which is best for your basement.
RadonAway RP140 and RP145 Compared
RadonAway RP140 Overview

Features
- 135 CFM
- Plastic build
- Weighs 6 lbs
RadonAway RP145 Overview

Features
- 166 CFM
- 4″ diameter
- Thermally protected motor
Key Differences
The biggest difference between the RadonAway RP140 and RP145 is the cubic feet per minute flow rate. The RP145 is slightly higher at 166 cubic feet per minute but more expensive than the RP140 which only has a flow rate of 135 cubic feet per minute. The price difference is not much so we recommend choosing the more powerful fan if you have extra room in your budget.
Our Final Say
Both of these are good choices and very similar Radons fans. If you can’t decide between the two models we recommend choosing the RP145 so you are sure to vent all of the Radon from your home.
Frequently Asked Questions
Which Radon fan is better – the RP140 or RP145
The RP145 has a slightly higher flow rate which makes is better for large systems.
How long do RadonAway fans last?
Most RadonAway fans last for at least 5 years if maintained properly.
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