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Oase HeatUp Aquarium Heaters - Precise Temp Control, Fresh & Saltwater
Oase HeatUp Aquarium Heaters - Precise Temp Control, Fresh & Saltwater
Oase HeatUp Aquarium Heaters - Precise Temp Control, Fresh & Saltwater
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Oase HeatUp Aquarium Heaters - Precise Temp Control, Fresh & Saltwater

Marsoni M251S
Sale price$20.99
Pay 4 payments of $5.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Oase HeatUp Aquarium Heaters - Precise Temp Control, Fresh & SaltwaterThe Oase HeatUp Aquarium Heaters provide precision and reliability for both fresh and marine water setups. With a patented temperature control system incorporating a bi metal sensor, these heaters offer precise re adjustment and sensitive readings for optimal temperature maintenance. German engineered, the heaters can be integrated with external filtration systems like the FiltoSmart and BioMaster, freeing up space within the aquarium. A 3 year
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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
4.8 ★★★★★
Based on 2021 reviews
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Oldest First
Product Reviews
E
Verified Purchase
Elizabeth S.
Carnegie, US
★★★★★ 4
Quality changed
Color: color AA, Color: color AA
I previously purchased a pair of these a few years ago and they worked wonderfully. No complaints. Unfortunately, my toddler broke one and I got a new one to replace it. The quality of the new one is not like the old. The height is different now and the lid doesn’t fit quite right. Not a big deal but the lids are no longer interchangeable as before which can be annoying. Also, the glass looks cheaply made and there’s now a seam down the side. (See picture. New on left). Basically, if you are buying one to replace an older model, just save yourself the headache and buy two new ones if it bothers you that there’s different heights and jars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 9, 2024
S
Verified Purchase
Shannon R
Lowell, US
★★★★★ 5
Pepper in Some Fun
Color: color AA
This thing absolutely crushes and efficiently grinds any pepper just you want it. I was legit amazed the first time I cranked it. You won't regret cranking with me! It hold a great amount of pepper, is incredibly easy to use, and feels like it's a quality build. I am very happy with this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026
R
Verified Purchase
Racha
Lowell, US
★★★★★ 5
Good price, good product
Color: color AA
Looking for a replacement of my old battery operated grinder. Decided for a manual one instead, because it is less finicky. Works well, and can adjust the level of fineness. Well made and not too heavy. Can hold a lot of pepper corn.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2025
A
Verified Purchase
ABF
West Palm Beach, US
★★★★★ 1
Looks nice. Doesn't work!
Color: color AA
This thing is cheap trash. The inner ring keeps popping off into the food. If you don't keep it tight, while peppercorns come out. It's going right in the trash where it belongs!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 3
Works but quality of top doesn’t seem long lasting
Color: color AA
I bought this as a replacement for a grinder that came in a similar set I had that broke. This grinder works alright, but it is not as good quality. I will not be returning the item, but also will not purchase this grinder again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2025

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