Canister filter with 1/2" O.D hoses? - The Planted Tank Forum
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post #1 of 11 (permalink) Old 10-07-2019, 11:56 AM Thread Starter
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Canister filter with 1/2" O.D hoses?

I'm looking for a canister filter that has 1/2" outer diameter hoses if one exists (I have no clue about canisters) as there are 2 holes pre-drilled in my used stand presumably for a canister. I tried to fit 1/2" I.D, 5/8" O.D hoses in the holes but they don't fit just by a few mm. Thanks for any help !
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post #2 of 11 (permalink) Old 10-07-2019, 12:48 PM
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You should definitely just go to your hardware store and buy appropriate hose Barbs / reducer to convert your canister filter hoses down to the correct size. It will be cheap, effective, and a lot easier.
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post #3 of 11 (permalink) Old 10-07-2019, 03:21 PM
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Why not drill out the holes in the stand to a larger diameter? Would be the easiest and cheapest route I would think.
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post #4 of 11 (permalink) Old 10-07-2019, 03:26 PM
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If you use a reducer you’ll be cutting canisters output.
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post #5 of 11 (permalink) Old 10-07-2019, 06:30 PM
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True but unless he drills larger holes the alternative is to use smaller size canister which would have lower output anyway.

And unless he already owns the correct size diamond hole saw and bulkheads, the cheapest route is still going to be to put a reducer on and call it day. For under 10 dollars could have the job done.
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post #6 of 11 (permalink) Old 10-07-2019, 06:51 PM
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Quote:
Originally Posted by Ravynn View Post
I'm looking for a canister filter that has 1/2" outer diameter hoses if one exists (I have no clue about canisters) as there are 2 holes pre-drilled in my used stand presumably for a canister. I tried to fit 1/2" I.D, 5/8" O.D hoses in the holes but they don't fit just by a few mm. Thanks for any help !
Is this a Nano tank? 1/2" od tubing is really small and won't have much flow. What is your stand made out of? I would drill out the 1/2" holes to 5/8" if your tank is anything larger than a 10g tank.

Last edited by Oughtsix; 10-09-2019 at 05:59 PM. Reason: sp
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post #7 of 11 (permalink) Old 10-07-2019, 07:19 PM
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The holes are not in the tank, they are in the stand so I don't know why they would need to buy a diamond hole saw.

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post #8 of 11 (permalink) Old 10-08-2019, 09:06 AM
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Ehiem 2215 has 1/2 inch hose.

But opening up the holes makes sense to me.
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post #9 of 11 (permalink) Old 10-08-2019, 02:42 PM
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Originally Posted by Jbubba001 View Post
Ehiem 2215 has 1/2 inch hose.

But opening up the holes makes sense to me.
1/2" ID or 1/2" OD? Big difference which is what the OP is running into.


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post #10 of 11 (permalink) Old 10-09-2019, 03:04 AM
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Easiest route would be to drill larger holes as mentioned, or just use a jigsaw to cut both holes out to make it an elongated opening (which is my preference anyways)


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post #11 of 11 (permalink) Old 10-15-2019, 06:31 AM
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Quote:
Originally Posted by jinx© View Post
Easiest route would be to drill larger holes as mentioned, or just use a jigsaw to cut both holes out to make it an elongated opening (which is my preference anyways)
I was going to suggest the same thing. I have Eheim 12/16 hose which is typically interchangeable with what is advertised as 1/2 in hose. Note: 1/2 in tubing typically reflects ID, not OD but it depends on the application. If it is aquarium tubing, it means ID which is 13mm.

I drilled my holes with what looks to be a 1 1/2 in hole saw, which has grommets typically used on desks. The hole size with the grommet is 1 1/4 inch but my tubing is still slightly kinked. The whole should be much bigger for the OP. Unless some really good S bend is used, the holes are too small, even if the tubing is smaller.

I would find the appropriate size grommet and cut elongated holes. I would then use something like this, but in the size that fits your application, I am just using this as an example of the type of grommet I would personally use: https://www.amazon.com/Large-Plastic...1116979&sr=8-6

If your stand is real wood and solid wood, you don't need the grommet if you can match the stain or paint, but I still think it looks better with it.


I would not use smaller tubing in general, and in this situation, it's a pretty easy fix. I imagine these holes are not for canister filters but airlines.

-Matt

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