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OASE Heatup Aquarium Heater 300 Watt

Marsoni M251S
Sale price$66.99
Pay 4 payments of $16.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
OASE Heatup Aquarium Heater 300 WattThe OASE HeatUp line of aquarium heaters are designed for marine and freshwater tanks. For optimal heating, utilize the HeatUp 25 to create uniform temperature levels for your aquarium environment. The control system on the heater allows accurate readjustment of the temperature (+ 6F) and can be adjusted using the included post calibration tool. The temperature scale can be adjusted between 66F 90F. The HeatUp is perfect for submerged use and includes
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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
4.6 ★★★★★
Based on 2255 reviews
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Verified Purchase
KEllwood
Fort Morgan, US
★★★★★ 5
Great shirt
Size: Large, Color: Grey
Great shirt with a good price ..nice fit & nice material . Looks great when ironed !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
M
Verified Purchase
michael h.
Grantham, US
★★★★★ 5
Wonderful product
Size: Large, Color: Sky Blue
Great Shirts this is the second set I have bought and they wear nicely and fit well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
T
Verified Purchase
Toby W.
Battle Creek, US
★★★★★ 4
Order 1 size larger.
Size: X-Large, Color: Blue White Plaid
Nice shirt. The size is not accurate by any stretch of the imagination. I wear size xl in shirts except for this one. An xl fits like a large. Other than that I like the shirt. I would've given it 5 stars if not for the sizing. I'll give away this one and order an xxl. Just order a size above what you wear and you'll be happy.
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Reviewed in the United States on February 15, 2026
N
Verified Purchase
Never received the order
New York, US
★★★★★ 5
Nice fit
Size: X-Large, Color: Grey
Great value for the money. Would buy again.
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Reviewed in the United States on April 30, 2026
J
Verified Purchase
John Robinson
Lowell, US
★★★★★ 5
Satisfied with color and fit
Size: Small, Color: Light Purple
For the money, this is a good shirt. True, the material is a bit thin and there is a feeling of 'fragility' (loose threads here and there) but the color is nice, the texture is appropriate. The sizing is what I call "New American". I was a medium my whole life but supersizing has made me into a small. I haven't changed, Americans have grown bigger. I am six feet tall and a bit (180+ cm) and weigh 155 pounds (70kg and a bit). The small fits me just fine everywhere but the shoulders are just barely wide enough. If you have slightly wider shoulders but are similar to me otherwise, this may be too tight for you in that one place.
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Reviewed in the United States on May 13, 2025

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