Black chamber cover lid and a fountain nozzle on the back chambers of a white Fluval Flex 15 gallon

Filter Chamber Cover Lids for Fluval Flex 15 Gallon, Set of 3

Black
$22.00
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Black chamber cover lid and a fountain nozzle on the back chambers of a white Fluval Flex 15 gallon

Filter Chamber Cover Lids for Fluval Flex 15 Gallon, Set of 3

Reviews from our Etsy shop

$22.00

Fits: Fluval Flex 15 Gallon (Original)

Not for: Fluval Flex 9 & 15 Gallon 2.0 · Fluval Flex 9 Gallon (Original)

Not sure which tank you have?
  • Three separate lids, one for each rear chamber.
  • Cuts water loss from the filter chambers in an open-top tank.
  • Deep cutouts let cords, airline and hoses pass behind the tank.
Color
  • Flat $4.88 shipping for your whole US order
  • Ships Mon, Wed & Fri. Arrives 2–5 business days after it ships.
  • Damaged or wrong? Refund or a new part within 30 days. Our policy

About this part

Running a Flex 15 without the stock lid shows off the tank, but it leaves the filter chambers open to dust and evaporation. These three chamber covers close the rear chambers in an open-top setup and still leave room for every wire and hose you run.

Compatibility
  • Fits: the original Fluval Flex 15 gallon (57 L).
  • Does not fit: the Fluval Flex 2.0 or the Flex 9. For the Flex 9, see our Flex 9 chamber lids.
Why it helps
  • Three separate lids, one for each rear chamber.
  • Cuts water loss from the filter chambers in an open-top tank.
  • Deep cutouts let cords, airline and hoses pass behind the tank.
  • Sturdy tabs keep each lid in place.
Installation
  1. Set one lid on each rear chamber.
  2. Route your cords and hoses through the cutouts.
  3. Lift any lid off to reach your pump, heater or media, then set it back.
In the box

A set of 3 chamber cover lids, in black or white.

Designed and 3D printed in Pennsylvania. One flat shipping price covers your whole US order, so a second part ships for no extra cost.

  • 5 stars: 29 (85%)
  • 4 stars: 2 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 3 (9%)
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Holly Gardner

Great item! This is my second set, for my tank. I put them in the dishwasher to clean them before setting up my tank again for my new fish. As you might imagine they got warped, not smart! I bought these again, as they were a perfect fit and a quality item. Perfect! Ship quickly too!

H
Harry

Excelentes tapas. Calzan perfecto en fluval flex 57 L

H
Holly Gardner

Fantastic fit! I’d been looking for covers for the filter area for over a year! Thanks so much for making these. I needed them to be solid, my snails keep escaping to back and I’d have a devil of a time fishing them out, lol!
Thanks again!

D
Denise Fugate

Item was made perfectly, fast shipping and awesome customer service

M
Michael Futch

Really well made filter covers but you can’t use them with the lid risers made by the same manufacturer

J
Jeff Weidemann

Fit perfectly on Flex57. Very well made. Happy shopper.

R
Ryan Boulter

Product came very quickly. Great quality.

J
J Webb

Rear chambers do not fit Fluval flex 15 gallon tank. Cannot close tank lid with these chambers on. Poor customer service will not allow refund or exchange. Does not state in description that the tank lid has to be open at all times in order to have these rear chambers.

A
Ashley

Arrived and fit as expected, shipping was quick.

C
Carla

Die Kammerdeckel sind super verarbeitet und sehen hochwertig aus.

P
Patrick Domingues

These peoducts are Solid items

A
Alison Taylor

Fits perfectly I. My Fluval flex 15

M
Markus Handlin

Super Qualität und schnelle Lieferung

J
Jeanette Rilling

Product ok. Rude response to request for refund. You can not use these with the other mods he makes for this same tank and expects buyers to be aware that they are not compatible. Not going to pay return shipping, lesson learned.

I
Irsam

Item does not work as I thought - the lid of the tank cannot go on the tank with these covers on. I had a previous fish jump into the filter compartment even with the lid on the tank .. that’s why I purchased this but was mislead as it does cover the back but then everything else is open because lid can’t go on.

J
Joshua Anzalone

Great items, thank you very much!

C
Cody

Did what I needed it to do!

Y
Yoan

Bien réalisé et livraison rapide

K
Kyle Clinger

Camber covers came in and I am happy that they fit well on my aquarium.

D
Diana

Item fits great, however it is not mentioned that lid risers will be needed if you plan on using the original lid/ light that comes with the Fluval Flex tanks because the chamber covers do not contain slots for the lid to fit into.

B
Brook Blackmore

Great product and great customer service. Contacted the seller as I accidentally had it shipping to my old address and he switched it no problem for me and was very quick.@ in replying

K
Kayla Fleeter

This item is great however I had to return it because I didn’t realize it doesn’t work with the fluval stock lid. You have to get another type of lid or lid risers to use it. The customer service was great and I was able to quickly return and get a refund. Item is great though and if you can get a different lid then I would recommend these!

E
Etsy customer

Fits great! For some reason I was under the impression I could use them *with* the stock lid, but nope! That is my fault for not double checking, though. I’m looking into getting another light and cover so I can actually use these, now! Wonderfully made, though, and very solid.

M
Maria

Fits my tank perfectly. Well made 3d printed item.

D
Darin Villegas

Great quality, really quick shipping

C
Chase Burns

Very high quality 3D printing

r
randall Benson

This fit pretty good. I wish they were slightly more snug as the cords for the pump and heater pushed them up at first until I weighted them down. Once they sit for awhile it will be fine. Still love these. I am glad I purchased them.

E
Etsy customer

These compartment lids fit perfectly and are just what I needed. Thanks!

j
james deschepper

Arrived perfectly all the way in Belgium and works great! Thanks!
PS: only works if u dont use the standard lid or have the lid raised!

A
Anne Simmons

I have a mystery snail that likes to explore and ends up in the filter reservoir. These caps have been great for my open-top Flex. They fit snuggly and keep the roving snail where it’s supposed to be.

P
Paul

Excellent design and quality. The item is not fragile, like most 3D printed items. 3 Thick plates make up the back and fit like a glove. To the seller, I would highly recommend a small addition. Please add a cable slot for all 3 plates sections. That way, users have more flexibility to utilize the back space.