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expiredphoinix | Staff posted Oct 10, 2025 07:10 PM
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expiredphoinix | Staff posted Oct 10, 2025 07:10 PM

$28.78: Fluval U3 Underwater Filter – Designed for Freshwater and Saltwater Aquariums at Amazon

$29

$45

35% off
Amazon
4 Comments 2,121 Views
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Deal Details
Amazon [amazon.com] has Fluval U3 Underwater Filter – Designed for Freshwater and Saltwater Aquariums for $35.98 - $7.20 when you 'clip' the coupon on product page = $28.78.
Shipping is free.

Price
$16.20 lower (36% savings) than the typical price of $44.98
$21 lower (42% savings) than the previous price of $49.78

Savings
Saving $7.20 (clip on the product page)

Customer reviews
4.1⭐ / 10,626
400+ bought in past month

amazon.com/dp/B001TKZ51E [amazon.com]

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Deal Details
Product Info
Community Notes
About the Poster
Amazon [amazon.com] has Fluval U3 Underwater Filter – Designed for Freshwater and Saltwater Aquariums for $35.98 - $7.20 when you 'clip' the coupon on product page = $28.78.
Shipping is free.

Price
$16.20 lower (36% savings) than the typical price of $44.98
$21 lower (42% savings) than the previous price of $49.78

Savings
Saving $7.20 (clip on the product page)

Customer reviews
4.1⭐ / 10,626
400+ bought in past month

amazon.com/dp/B001TKZ51E [amazon.com]

My other deals

Community Voting

Deal Score
+9
Good Deal
Visit Amazon

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Model: Fluval Underwater 3 Filter | PetSmart

Deal History 

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Sort: Lowest to Highest | Last Updated 11/30/2025, 05:37 AM
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Amazon$21.59

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4 Comments

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Oct 11, 2025 04:16 AM
1,999 Posts
Joined Nov 2018
IndigoWinter2667Oct 11, 2025 04:16 AM
1,999 Posts

Our community has rated this post as helpful. If you agree, why not thank IndigoWinter2667

Not my favorite product from Fluval but im always excited to see deals for them or any aquarium stuff really.
1
Oct 11, 2025 11:42 PM
134 Posts
Joined Jan 2004
dosterpfOct 11, 2025 11:42 PM
134 Posts
I've had this one. Stupid hard to clean fully.
Oct 12, 2025 01:24 AM
422 Posts
Joined Nov 2015
shaffOct 12, 2025 01:24 AM
422 Posts
Quote from IndigoWinter2667 :
Not my favorite product from Fluval but im always excited to see deals for them or any aquarium stuff really.
Same here. Still mad I missed the sale on the fluval canister filter!
Oct 12, 2025 09:05 PM
1,999 Posts
Joined Nov 2018
IndigoWinter2667Oct 12, 2025 09:05 PM
1,999 Posts
Quote from shaff :
Same here. Still mad I missed the sale on the fluval canister filter!
They usually do one around black Friday so theres still hope this year. I got a killer deal on an FX4 last year for like 120 bucks after some buy one get one half off return shenanigans.

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