350B Impeller Assembly Penguin Filter Parts for Aquarium | For Marineland Penguin Power Filter 350B

I have 2 Penguin 350 filters on my 75 gallon aquarium - the newer one is 2-1/2 years old. Over time the older one became noisier, but it happened so gradually that it was barely noticeable. It rattled a bit, but was tolerable. Then a couple nights ago it sounded like it was about to self destruct. After reading the reviews I decided to give it a try. OMG 😳. I installed it and turned the filter back on. INSTANT AND TOTAL SILENT OPERATION. I’m going to order another one for future use in the other filter. DO NOT buy a new filter. Buy a new impeller.

This is the second replacement part I have bought for my 2 marine filters. Saving me a lot of money. If your filter is making a rattling sound, this is probably the part you need.

It came 3 days late but I was very pleased when I used it. The motor was running in the filter but water wouldn’t flow because the blades on my old impeller were really worn. I was already fed up with the filter because when I purchased it about 3 yrs ago, it was already giving me problems. I decided to try this impeller before purchasing a new filter and it has it running better than it did when I purchased it. This was for my Marineland Bio-Wheel Penguin 350 GPH Power Aquarium Filter, up to 60 gallons.

I’ve had to Order 2 since I run around 4-5 of the marineland filters of this impellers type. So far they are working well, I’d give it a 5/5 if they were a little less cheap maybe 10-15 in price but 25 is a bit wild in my opinion.. otherwise you get a prefect impeller !

If you are hearing a lot of rattling or rumbling noise from the filter, or it is just loud and the loud is not a water sound, its probably a worn out rod. What happens is the impeller spins millions of revolutions over time and wears out the stainless steel rod. You would notice that there is some play in between the hole of the impeller and the shaft. There should be no play. If you have a magnifying glass of a jewelers loop you would be able to see the rod getting thinner the closer it is to the impeller. You can replace that rod for a lot less than buying a new one. Here's what you need to do.1. Get some needle nose plyers and pinch the rod just below the end cap, if the end cap is at 12:00, have the end of the plyers at 4:00, and then pivot the plyers up to 2:00 and this should push the cap off.2. Remove the shaft, at this point there would be the other end cap on the other end of the shaft.3. At this point you can do 1 of 2 things, get some Vaseline like others have said and cover the shaft in it and put it back together (this will get you by for maybe a few days) OR3b. Go out and buy 2.5MM stainless steel rods on amazon, they come in 10 packs 300 mm long so you could make 30 of them if you needed to.4. Use your old shaft to determine the right length and cut exactly to that length using cutters and a grinder or dermal tool to smooth it off. Just make sure the length is right.5. Use Vaseline on the rod and put it back together with the end caps on the ends. You will have plenty of material left over for additional shafts.I did buy this one new because I needed it in a pinch, but I saved the old one and bought new the new stainless steel rods so I have one ready when this new one goes bad. I will just keep replacing the shafts and never buy a new one again.

Before buying this I tried adding vaseline to the impeller but it didn't help. I was going to buy a whole new filter but decided to try this. I'm so happy I did. It came in the mail after two days from my order, I replaced the old impeller with this one, turned back on the filter and no noise (other than water running through the filter). Considering this is the only moving part in the HOB filter it's a cheap and easy fix to keep this thing running for years to come. I assume I'll have to buy another one at some point but I most certainly will.

Considering its around half the price of the entire 350 filter, its a bit much (although its made in USA which is nice). That being said, I can't justify throwing out an entire filter when it just needs one part. It just seems so wasteful.Bought this for our 10 year old Bio-Wheel 350. The last time I had the filter apart for cleaning I noticed the bottom bushing was starting to deteriorate. Since then the filter has gotten noisier. Works fine but sounded like it was constantly trying to prime. Replaced the impeller and its nice and quiet again.

So when installed, these are whisper quiet. It's great. You are happy with your purchase. Slowly they deteriorate (the metal post gets scoured) and you dont notice the noise... until one day your sitting there and you notice it. And then it is the only thing you can hear, this horrible grinding sound straight out of hell's torture chamber. You go to the other room and shut the door. You can still hear it. You contemplate murder of your fish by way of no filtration while the next baggy with a life saving purple impeller comes. When it arrives, you are praising it as it is the most amazing thing when installed... peace... quiet... until this one inevitably becomes possessed and starts to cause insanity. Then the cycle continues to repeat. Order 3 or 4, save yourself some sanity.

Muy buena calidad. Justo lo que buscaba

Amazing! The vibrating noise I had started hearing stopped!

Installed an pump works like new !

Quiet and fit as a direct manufacturer part.

Works like a charm, very quiet compare to the old one, but it's too expensive for what it is. I bought this and the bearings and I wonder if I should not have just bought a new filter all together...