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OASE BioMaster Thermo 350 External Canister Filter with Built-in Heater Black, Blue
OASE BioMaster Thermo 350 External Canister Filter with Built-in Heater Black, Blue
OASE BioMaster Thermo 350 External Canister Filter with Built-in Heater Black, Blue
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OASE BioMaster Thermo 350 External Canister Filter with Built-in Heater Black, Blue

Marsoni M251S
Sale price$199.00
Pay 4 payments of $49.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
OASE BioMaster Thermo 350 External Canister Filter with Built-in Heater Black, BlueThe BioMaster Thermo line of premium external filters with integrated heaters are perfect for marine and freshwater aquariums. The BioMaster Thermo 350 boasts 4 stage filtration in a compact design. With the heater integrated into your filter, there is more room for undisrupted beauty in your aquarium. Biological, mechanical, chemical, and prefiltration all work together to provide your aquarium with optimal water quality and clarity. The BioMaster
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Your OASE BioMaster Thermo 350 External Canister Filter with Built-in Heater Black, Blue orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • 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
4.4 ★★★★★
Based on 346 reviews
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Product Reviews
B
Verified Purchase
Beth Lukes
Louisville, US
★★★★★ 1
Junk
Color: Black, Size: 4 Panel-88'', Color: Black, Size: 4 Panel-88''
Horrible. The parts are not right. It won’t fit together or disassemble and can’t return it like this. Parts won’t fit properly and missing holes for screws. Also, can’t get through to a person for any assistance. Picture shows the hole and then the lack of a hole where a screw belongs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
E
Verified Purchase
Excelente
Carnegie, US
★★★★★ 5
Excelente calidad
Color: Black, Size: Standard - 4 Panel
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
D
Verified Purchase
DCP
Boise, US
★★★★★ 5
Great value, perfect for our infant room!
Color: Black, Size: Standard - 4 Panel
Great product, sturdy design and easy to build! It is a fairly light weight item, which aids in the maneuverability of the divider. The color was as described and is dark enough to block the light from our sleeping infants! I do love that you are able to see through the slats and see the child sleeping- if you are looking for something with MORE privacy, this is not it. It has great coverage area and is dark and a wonderful value for the price, however, you are able to see through the areas where each panel connects!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
T
Verified Purchase
Tammy Lee Morris
Massapequa, US
★★★★★ 1
Don’t waste your money or time!
Color: White, Size: Standard - 4 Panel
Don’t waste your money. The instructions make no sense and the metal poles are either sized wrong for the product or screw holes are incorrectly placed, but no two poles matched in size and placement making it impossible to put this together without the panels being warped. No matter how I tried to switch the poles to see if I had them wrong, they always turned out warped and incorrectly fit. I finally gave up and threw everything out - I wasted $50 on this junk and because I didn’t try to put it together immediately after I bought it, it is way too late for a refund. Lesson learned!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2025
E
Verified Purchase
Edward Hugee
New York, US
★★★★★ 3
Sturdiness
Color: Black, Size: Standard - 4 Panel
Not so sturdy. It worked well for its intended job, but, it has to be secured to the floor for long term use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026

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