Aquarium Fitment Finder
Two things that do not connect? Tell us what you have on one end and what you want on the other. The finder shows the TankRig adapter built for those two sizes. If we do not stock it, we make it, and you can add it to your cart right there.
Pick who makes your filter, then pick the model, and we will do the sizing for you. Running custom plumbing? Switch to the size tab and start from a raw hose, vinyl, or PVC size instead.
The finder covers canister filter models from Eheim, JBL, Oase, and other common brands, plus metric hose, US vinyl tubing, and PVC pipe sizes. Pick what you have on one end and what you want on the other, and it does the matching for you.
Start with
Choose your filter and we do the sizing. 37 models from 16 makers.
Makers we hold sourced hose sizes for.
Pick a maker first.
Pick the hose, vinyl, or PVC size you are connecting to.
How the finder works
Canister filters from Eheim, JBL, Oase, Aquael, and others ship with metric hose. Tubing from a US hardware store or pet shop is sized in inches. The two systems land close together but never exactly on top of each other, so a hose sized for one will not grip a barb cut for the other.
That is the whole job of an adapter: a different barb on each end, one sized for your filter hose and one sized for the tubing or pipe you are joining it to. The finder reads the same size data our product pages use, then scans our catalog for the single part whose two ends match your two ends. If that pair is not on the shelf, it shows the made to order part instead, at a real price, ready to buy.
Need the full size tables by brand and model? See our hose size guide.
Frequently asked questions
Which adapter connects my canister filter to vinyl tubing?+
Pick your filter on one end of the finder and the vinyl size on the other. The finder shows the TankRig adapter built for those two sizes. Most Eheim and JBL filters use 12/16mm or 16/22mm hose, which our adapters connect to 5/8 inch, 3/4 inch, or 1 inch vinyl tubing.
How do I connect two different size aquarium hoses?+
You need a barb adapter with a different size on each end. Choose the size you have on one end of the finder and the size you want on the other. If we stock an adapter for that pair, the finder links right to it. If we do not, the finder shows the made to order part for those two sizes, with the price, ready to add to your cart.
Can I connect a canister filter to PVC pipe?+
Yes. Pick your hose size on one end and the PVC size on the other. Our PVC adapters use a printed spigot that slides into a standard PVC fitting, so you can plumb a permanent line instead of running flexible tubing.
What if you do not stock an adapter for my pair?+
Most of the time we still make it. The finder shows the made to order part for your two sizes, with the price and an Add to Cart button, and we print yours after you order it. If your pair is one we cannot make at all, the finder says so plainly and you can tell us what you run instead.
Is a 5/8 inch barb the same as a 16mm hose?+
Close, but not exact. A 5/8 inch hose measures about 15.88mm inside, just under a true 16mm. That small gap is why the finder matches you to a barb cut for your exact size instead of one size trying to do both jobs.