IM Outta HERE Compatible with #14130 Marineland O-Ring Cover Seal for Magnum 200, 220, 330 and 350 Canister Filters

This works on a Marineland Magniflow 360 gph Canister Filter (the one with a red pump button) it is a bit thin (and after reading reviews) I decided just to place it over my old gasket. I used pliers to dig it deeps down in there with the other one. Also before I started … I stretched it a bit. This one is tight but again … after reading reviews… I stretched it with no problems. Being a woman and the kids not helping, I got tired of fighting to get it on until I remembered what some of y’all said about stretching it. Thank you. Huge help! I think if my system starts slightly leaking again, I will buy two of these. I can’t seem to find the thick one on Amazon at all but this one works so I suggest two of them if you don’t want to just add one of these to your old one. I feel really stupid and wondered why the water in my tank was evaporating quite a bit. Before the week was up it took like four buckets of water to fill it back up. Amazingly it was small leaks that you didn’t notice on the floor or anything (I have title so I would of noticed something right) but it seems like a small leak can drain a tank pretty good by a weeks time. I just thought it was the Texas heat and I must have a very dry home hahaha (I have a 100 gallon fish tank so four buckets isn’t a huge difference but it is noticed) anyways, going on a week now and tank is full. So if some water is missing from your tank, more than usual… might need one of these gaskets. Great price just slightly thin since this system needs a thick one. But again … great price no doubt!

This does not fit my Marineland canaster 360 and I cannot return it. I will never buy from them again..

Fit perfectly in my Magnum 350 canister. No leaks. Bought another for a spare.

Works as expected

exact fit and filter works really well

The o ring is way thinner than the gray one i have for my TS3 and it is also a lot tighter, water got past it easy.

Just submitting this because I read a review that stated this was too small for the Magnum 350. The ring I received fits all 3 of my 350's and is identical to the original.

It fit perfectly on my magnum 350, exactly like original o ring. I saw another review on here claiming it was too small but it is identical to the original and just as easy to install. Yes you have to stretch it a tiny bit. But that's how it holds on. It sealed perfect, I only replaced it cause i noticed little cracks on the original. (Picture of the original next to the new one)