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OASE HeatUp 400W Adjustable Heater
OASE HeatUp 400W Adjustable Heater
OASE HeatUp 400W Adjustable Heater
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OASE HeatUp 400W Adjustable Heater

Marsoni M251S
Sale price$59.99
Pay 4 payments of $15.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
OASE HeatUp 400W Adjustable HeaterThe HeatUp line of aquarium heaters are a reliable way of creating and maintaining uniform temperature levels for your freshwater or marine aquarium environment. The robust double insulated quartz glass tube provides additional safety for aquarium use. The control system has a patented secondary knob for accurate readjustment of the temperature (+ 2F). Additionally, temperature levels are monitored and controlled by bi metal technology for automated
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  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1578 reviews
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Product Reviews
J
Verified Purchase
Jose G. Montijo
Louisville, US
★★★★★ 4
pakaged
When I got them the box had damage and was pleasantly surprised that the shelves weren’t damaged, they were package well. Good quality very light and a nice finish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
R
Verified Purchase
Robert McDonald
Louisville, US
★★★★★ 5
Very nice at a nice price.
Color: White, Size: 35 Inch, Style: 2 Pack, Color: White, Size: 35 Inch, Style: 2 Pack
Very easy to mount on the wall. Very sturdy with about 10-12 lbs on each shelf. Only took about 15 minutes to hang each one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
C
Verified Purchase
Cherry Lynn
Cuba, US
★★★★★ 5
Cat playground
Color: Black, Size: 35 Inch, Style: 3 Pack, Color: Black, Size: 35 Inch, Style: 3 Pack
Easy to install. Sturdy enough for 2 large rambunctious kitties to play on and look very nice. I was working on a vertical play space for the cats and since these come in many sizes it worked great. I did add grip tape to some.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 3
Not the best quality
Color: Rustic Brown, Size: 35 Inch, Style: 2 Pack, Color: Rustic Brown, Size: 35 Inch, Style: 2 Pack
The shelving unit was not as I had expected. It arrived damaged. The damage is on the under side though. They are hollow and not hardwood as I had expected. Save your money if you want something of good quality. These are like 3 pieces of pressed wood glued together. They are space saving and look great in my space. The mounting hardware it comes with was plenty enough to hang these but make sure you hang them in the studs if at all possible. Assembly was simple. It does come with a micro level. Which a kid or pet could accidentally swallow. It’s like pill capsule sized so just be careful when opening the package.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Great shelving!
Color: Black, Number Of Shelves: 2, Size: 40"W x 6.5"D, Color: Black, Number Of Shelves: 2, Size: 40"W x 6.5"D
These shelves are amazing, easy to install and look very impressive! Price is good too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026

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