Oase Biomaster2 Thermo 350 External Filter

Oase Biomaster2 Thermo 350 External Filter

Marsoni

M251S

$122.07

Get it in 3 business days with 1 day shipping. Friday, May 29

Oase Biomaster2 Thermo 350 External FilterThe BioMaster 350 Thermo external filter fulfils the highest demands in terms of water filtration and filter cleaning. The combination of highly effective biological filtration by Hel X and mechanical biological cleaning by filter sponges ensures healthy and clear aquarium water. The HeatUp 200 adjustable heater is included in the scope of delivery. The BioMaster 350 Thermo is suitable for aquariums with a volume of up to 350 litres. The EasyClean pre

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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.
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The air filter was great and would recommend the OEM filter. My only Complaint is that they didn’t ship it in a box but only slapped on a shipping label on to the original air filter box. It took about a week to get to me (Arizona) and the box looked really beat up and luckily the filter was still ok by the time it got to me. Recommend putting it in a box to protect it from damage.

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Reviewed in the United States on February 22, 2026

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jamwantie chatoredussy

Omaha, US

★★★★★ 5

Sandy

Exact fit for my 2022 RX 350

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Reviewed in the United States on September 4, 2025

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W. Zheng

Fort Morgan, US

★★★★★ 5

Perfect fits

Ease of replacement. OEM quality.

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Reviewed in the United States on November 12, 2024

Verified Purchase

martha trevino

Lexington, US

★★★★★ 5

he Gold Standard in Air Filters

This product works just as intended. K&N has been a leader in lifetime air filters for a long time, and their reputation for quality is well-deserved.

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Reviewed in the United States on August 12, 2025