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Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...

Name: Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...
Brand: Penn-Plax
Price: 36.83 USD
Availability: InStock
Rating: 4.74 (109 reviews)

selectivesales123

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US $36.83

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Condition:

New

Quantity:

2 available2 sold

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Located in: East Falmouth, Massachusetts, United States

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Estimated between Mon, Jun 30 and Thu, Jul 3 to 94104

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eBay item number:197210253294

Last updated on Jun 26, 2025 15:31:49 PDTView all revisionsView all revisions

Item specifics

Condition: New: A brand-new, unused, unopened, undamaged item (including handmade items). See the seller's ...

Item Package Quantity: 1

Size: 40/55

Part Number: Cfu55

Style: 40 - 55 Gallon

Pattern: Aquarium Filter

Number Of Boxes: 1

Model Number: Cfu55

Model Name: Cfu55

Product Expiration Type: Does Not Expire

Directions: Wash With Warm Water Before Placing In Aquarium.

Specific Uses For Product: Indoor

Color: Blue

Customer Package Type: Standard Packaging

Unit Count: 1.0

EAN: 6280594358204

ISBN: 6280594358204

Package Dimensions LxWxH: 11.77x11.42x2.8 Inches

Weight: 2.07 Pounds

UPC: 0786714607581

Brand: Penn-Plax

Tank Capacity: 55 gal.

Type: Undergravel Filter

Water Type: All Water Types

MPN: CFU55

Filter Location: Internal

About this product

Product Identifiers

Brand

Penn-Plax

MPN

CFU55

GTIN

0786714607581

UPC

0786714607581

eBay Product ID (ePID)

17032424835

Product Key Features

Tank Capacity

55 gal.

Water Type

All Water Types

Type

Undergravel Filter

Filter Location

Internal

Item description from the seller

About this seller

Joined Nov 2015

Welcome to our family owned business since 2015. We are here to provide the best customer service, and offer the best products. Please message us with any questions, and we wish the best to you and ...

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Detailed seller ratings

Average for the last 12 months

Accurate description

4.8

Reasonable shipping cost

5.0

Shipping speed

4.9

Communication

4.8

Other

Seller feedback (75,027)

r***u (219)- Feedback left by buyer.
Past 6 months
Verified purchase
Very cute mug! Smaller mug but good quality, just as described, new with box, but came from Amazon, so not much communication about shipping from seller. Reasonable price. Would buy from again.
Classy Sassy and A Bit Smart Assy Ceramic Coffee Mug - 11oz - Ideal Funny Cof... (#197042027410)
t***t (4786)- Feedback left by buyer.
Past 6 months
Verified purchase
Thank you for providing excellent service!!! Great price, as described, fast shipping and packed nicely. Awesome seller!!! God Bless!!!
Warthog V-Sharp A4 Replacement Hones, MEDIUM 600 Grit for A4 & Classic II Kni... (#197049407293)
h***o (1)- Feedback left by buyer.
Past month
Verified purchase
The good people at eBay contacted me via email and and they are making me whole! They are refunding me the full amount and they re going out of their way to send me the seafood gumbo mix! I am very happy and satisfied with eBay!
Zatarains Gumbo Mix 7 oz (Pack of 12) (#196961651372)

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Product ratings and reviews

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4.7

109 product ratings

92 users rated this 5 out of 5 stars
12 users rated this 4 out of 5 stars
2 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
3 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 71 reviews

by cheali1958
Mar 06, 2018Top favorable review
Economical, easy set-up, little maintenance used with power heads fit into risers.
I have used these for over 45 years, and have no problems once my tanks are set up. The eco system created with these is the healthiest you can have. I have had tanks set up for over 10 years and not torn completely down. If you do not have power heads, you can use the air lines and air stones inside the risers and they work just as well, but you have to have an air pump, that sometimes can get noisy. These are great as they snap together and stay in place. Using the two to two and a half inches of gravel is essential. I do not know of anything negative about the system. I would recommend it to everyone, especially if just starting out with an aquarium. Most people will start a tank up then change out water too often, not letting the eco system get built up. This is why many have ... I have used these for over 45 years, and have no problems once my tanks are set up. The eco system created with these is the healthiest you can have. I have had tanks set up for over 10 years and not torn completely down. If you do not have power heads, you can use the air lines and air stones inside the risers and they work just as well, but you have to have an air pump, that sometimes can get noisy. These are great as they snap together and stay in place. Using the two to two and a half inches of gravel is essential. I do not know of anything negative about the system. I would recommend it to everyone, especially if just starting out with an aquarium. Most people will start a tank up then change out water too often, not letting the eco system get built up. This is why many have trouble keeping the water clear and lose a lot of their fish.
Verified purchase: YesCondition: NewSold by: thehoneyroastedpeanut
by 1srvgzus2
Feb 10, 2017
Old School Aquariums.
I have been doing aquariums for a hobby for 40 years. Not as many people use a U/G filter. I do. Instead of vacuuming the substrate and doing a partial water change I just siphon from the U/G tube and replace the water. Plen-Plax is a superior product and I have used them for years. I like the over and under plates best. This filter is strong and holds up for years. I guess I am Old School cause I still believe these products work. They make your water changes simple....and no disturbing the gravel!!! Great Product!!!I have been doing aquariums for a hobby for 40 years. Not as many people use a U/G filter. I do. Instead of vacuuming the substrate and doing a partial water change I just siphon from the U/G tube and replace the water. Plen-Plax is a superior product and I have used them for years. I like the over and under plates best. This filter is strong and holds up for years. I guess I am Old School cause I still believe these products work. They make your water changes simple....and no disturbing the gravel!!! Great Product!!!
Verified purchase: YesCondition: NewSold by: living_goods
by njnvcoca
Aug 04, 2020
Terrific Quality and Price-Fast Delivery Too!
Very nice quality for a sub-gravel filter. Better than most you can get in stores. I augment all of my tanks using canisters with these as it seems to control the nitrates better with both running. Also excellent for clearing particulates, making the water very clear. I find plants grow even faster when in use, contrary to what I was concerned over. This one too is easy to adjust size for large tans or odd shapes. Great product!Very nice quality for a sub-gravel filter. Better than most you can get in stores. I augment all of my tanks using canisters with these as it seems to control the nitrates better with both running. Also excellent for clearing particulates, making the water very clear. I find plants grow even faster when in use, contrary to what I was concerned over. This one too is easy to adjust size for large tans or odd shapes. Great product!
Verified purchase: YesCondition: NewSold by: huyn-79
by dinkbuster1
Nov 08, 2017
Awesome!
For the price you cant beat this product! I always thought you needed a powerhead for an undergravel system, my air pump works just fine. If you want to see how this works look it up on youtube. Be careful though when breaking the tabs off of the blue plate the plate is made of thin plastic. The flow will be much faster if you dont use the charcoal filters, they dont do much anyways.. Very happy with this product!For the price you cant beat this product! I always thought you needed a powerhead for an undergravel system, my air pump works just fine. If you want to see how this works look it up on youtube. Be careful though when breaking the tabs off of the blue plate the plate is made of thin plastic. The flow will be much faster if you dont use the charcoal filters, they dont do much anyways.. Very happy with this product!
Verified purchase: YesCondition: NewSold by: shopsy
by newunborn
Apr 18, 2019
Better than I thought
The item came as it's descrive on the site and it come with all the plumbing needed I also realized that two of the tray filters of the 55 gal will also fit a 20 gallon long tank there is a 6 1/2 inch gap and the tubes are a bit long but they could be shotern out but overall I'm happy with the product I'll be using this set for my 40 gal the pictures are from a 20 gallon tank
Verified purchase: YesCondition: NewSold by: huntingly

Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...

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selectivesales123

97.7% positive feedback•222K items sold

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Product ratings and reviews

Most relevant reviews

Economical, easy set-up, little maintenance used with power heads fit into risers.

Old School Aquariums.

Terrific Quality and Price-Fast Delivery Too!

Awesome!

Better than I thought

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selectivesales123

97.7% positive feedback•222K items sold

Detailed seller ratings

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Seller feedback (75,027)

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Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Pla...

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Item description from the seller

selectivesales123

97.7% positive feedback•222K items sold

Detailed seller ratings

Popular categories from this store

Seller feedback (75,027)

Product ratings and reviews

Most relevant reviews

Economical, easy set-up, little maintenance used with power heads fit into risers.

Old School Aquariums.

Terrific Quality and Price-Fast Delivery Too!

Awesome!

Better than I thought

More to explore :

Shop Top Sellers and Highly Rated Products in Filters

Best Sellers

Top Rated

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