YongHeng 4500 Air Pump looking for the Brass Air Filter

Hey guys anyone have a spare or know where I can find one of these see the photo its the brass aerator. No idea what its called. Mine broke off. I looked on ebay, aliexpress and amazon. Im not sure what the part number is called or what size fitting it is?

Any help would be appreciated.

Also anyone know if there is an exploded parts list for the Hen Yong 4500 air pump.

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FIDI,
Search "Yong Heng Air Filter" on eBay, you'll see a white filter in a black plastic frame, 5 for $15. I've seen Yong Hengs with both styles, I'd just get the white/black version if the bronze can't be found. Can't swear to it but I'm sure the white/black style would screw right in. WM
Yeah I had found the one your talking about. I was looking for the brass one. But if I cant find it I guess I'll take a chance. I need to figure out what size thread it is? There are some other fishtank aerators that look similar not sure how important this is to get right.
 
Hey guys anyone have a spare or know where I can find one of these see the photo its the brass aerator. No idea what its called. Mine broke off. I looked on ebay, aliexpress and amazon. Im not sure what the part number is called or what size fitting it is?

Any help would be appreciated.

Also anyone know if there is an exploded parts list for the Hen Yong 4500 air pump.

View attachment 334538
Here is the part on AliExpress
It is called a Sintered Bronze Exhaust Muffler
Verify threads before ordering

Also available on Amazon