The old Amazon page for this model is gone. Details come from the older review and the maker’s claims. Replacement picks were checked on Amazon on October 13, 2026. Output, power and warranty figures come from the older review and were not retested.
The Aprilaire 1820 Pro was a heavy-duty dehumidifier for crawl spaces and big basements. Its Amazon page is gone. This page keeps the review for owners and points to what to buy now.
Table of Contents
Best Replacement Today
Price on Amazon: $1,769.99 | 4.8 stars from 131 ratings (checked October 13, 2026)
What the Aprilaire 1820 Pro Was
The Aprilaire 1820 Pro was a heavy-duty dehumidifier for crawl spaces and basements. The older review rated it at about 70 pints a day and said it moves around 200 cubic feet of air per minute. It put the coverage at about 2,200 square feet. It weighed 68.25 pounds and the review said an expert should install it. The original Amazon link no longer works, so it cannot be priced or checked there.
Looking ahead, crawl space and whole-home dehumidifiers are getting smarter and pricier. Makers now sell bundles with duct kits, Wi-Fi controls and long warranties, and older models like the Aprilaire 1820 Pro vanish from shops without notice. The catch is that when a model page disappears, so do the easy ways to check price, reviews and parts.
What the Older Review Said
- Power. About 5.8 amps.
- Drain. A 5 foot drain tube is included, so it drains continuously with no bucket.
- Filter. A washable MERV 8 filter.
- Cord. 8 feet, longer than most.
- Controls. A Wi-Fi version let you change settings from a phone or tablet.
- Warranty. 5 years.
- Noise. Slightly louder than other models, so it belongs in a crawl space or basement.
The downsides were the price, the weight and the need for a pro install.
The risk to watch is buying by name alone. Aprilaire sells several look-alike models, and the older review called the 1820 Pro a unit that needs expert installation. A wrong model, a missing drain line or a poor duct fit can waste a four-figure purchase. Expect more bundles and kit names. Read the model label and the install notes before you pay.
Upkeep
Wash the filter every few months with warm water and a little soap or vinegar, and flush the drain line once a year. Check the drain slope after any move. If you own one, save the manual and the model label. For the bigger Aprilaire, read our Aprilaire 1850 review. Size a replacement with how to choose the right size dehumidifier.
Best Replacement Today
The picks below are current listings. For another ventilating heavy-duty model, see the Ultra-Aire 70H review. For the full crawl space list, read crawl space dehumidifiers, and for whole-home setups see whole-house dehumidifiers.
Prices and Alternatives on Amazon
Prices and ratings were checked on Amazon on October 13, 2026.
Price on Amazon: $1,769.99 | 4.8 stars from 131 ratings (checked October 13, 2026)
The Aprilaire E070 Pro is listed as a 70-pint whole-house dehumidifier bundle. It has a 4.8 rating from 131 ratings. Check the install type before you order.
Price on Amazon: $1,769.99 | 4.4 stars from 251 ratings (checked October 13, 2026)
The Aprilaire 1850Z Pro is listed at up to 95 pints a day for crawl spaces, basements and whole homes, with corrosion-resistant aluminum coils. It has a 4.4 rating from 251 ratings.
Price on Amazon: $499.36 | 4.2 stars from 1,222 ratings (checked October 13, 2026)
The ALORAIR Sentinel HD55 is listed at 113 pints and 1,200 square feet with auto defrost and a drain hose. It has a 4.2 rating from over 1,200 ratings.
Price on Amazon: $396.19 | 4.0 stars from 779 ratings (checked October 13, 2026)
The ALORAIR 70 PPD is listed for 1,000 square feet with a pump and auto defrost. It has a 4.0 rating from 779 ratings.
Pros and Cons
Pros: 70-pint class output; continuous drain with a long tube; washable MERV 8 filter; long 5-year warranty; optional Wi-Fi control.
Cons: Amazon page gone; expensive; heavy at 68.25 pounds; pro install advised; louder than other models.
FAQ
Is the Aprilaire 1820 Pro still sold on Amazon?
The old Amazon page is gone. Check the model label if you find a resold unit, and expect no warranty.
How many pints did it remove?
About 70 pints a day for roughly 2,200 square feet, per the older review.
What replaces it?
The Aprilaire E070 Pro is the closest 70-pint Aprilaire on Amazon. The AlorAir HD55 is a lower-cost crawl space option.
Does it need a pro to install?
The older review said yes. Plan for a drain line and, on ducted setups, duct work.
Final Word
The 1820 Pro was a serious machine, but you cannot buy it from Amazon now. For a big damp space, a current 70 to 95-pint unit with a clear listing is the safer path.
What happens next: expect more ducted, app-connected units rated by the new test, with 70 to 100 pints as the sweet spot for big homes. For a sealed crawl space or a damp basement, a unit built for that job still beats a portable.
Related Guides
Keep going with crawl space dehumidifiers, Aprilaire 1850 review, whole-house dehumidifiers, how to choose the right size dehumidifier and Ultra-Aire 70H review.
