Oase BioMaster Prefilter Upgrade Kit

Marsoni

M251S

$31.95

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

Oase BioMaster Prefilter Upgrade KitThe Biomaster upgrade kit can be retrofitted to any model Biomaster filter. Kits are available for all sizes, and can be used on both Thermo and non thermo versions of the filter. A newly designed tube inside the prefilter ensures flow rate is maintained for longer, thereby extending the period between cleans of the prefilter foams. Used in conjunction with the new 10ppi foams, this serves to provide adequate prefilter protection for the main filter

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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

I am obsessed with this product! I originally bought it when I was in Paris and I loved it. It is the smoothest silkiest texture. A small amount goes along way. I put it on at night as part of my bedtime routine and the changes I have noticed my skin are amazing. I think the price point is good not too expensive and it lasts a long time it hydrates my face super well has a slight scent, but very pleasant. No greasiness.

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Reviewed in the United States on August 21, 2025

Verified Purchase

Madison Praino

Lowell, US

★★★★★ 5

Accutane holy grail!!

I’ve been on accutane for 2 months and have used this day and night. My skin has not flaked once and has appeared so hydrated despite taking a very drying medication! It’s very lightweight, non-stick, and quickly absorbs into my skin. I don’t usually write reviews but this is worth while for accutane users!

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Reviewed in the United States on November 17, 2025

Verified Purchase

Susan

Waukegan, US

★★★★★ 5

Great product but pricy

I really like this product. It helps with “aged” skin- moisturizing but not oily or heavy feeling. It is pricy though.

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Reviewed in the United States on April 21, 2025

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Judy

Grantham, US

★★★★★ 5

Perfect for Glassy Skin

Love the feeling, ease of application, hydration, longevity/ duration, and all-day effect. Would be nice if they cost less, but here we are. Size is perfect for travel. Of course super hydrating products will be a bit sticky to touch, but I shouldn’t be touching my skin anyway. Only pops up when I need to put my face down for a massage or at the chiropractor. Love Avéne!

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Reviewed in the United States on September 12, 2025

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Victor Cisnero Ricardo

Whiting, US

★★★★★ 5

Good

Really good

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Reviewed in the United States on May 24, 2026