What is this piee of equipment called?

[ILoveit]

I found this pic in Heath Robinsons thread I hope he doesnt mind me using it here.

Ive been trying to find this item in hydro stores & aquarium stores but cant seem to locate it mainly because Im uncertain of what its official use is or its correct term.

Id like to experiment with it to see if does create an even water flow & create dissolved oxygen.

If you know where to purchase this item in the UK or know what its called please state.

 

[GoeRilla]

try something like nozzle. Ihave one exactly like that one but i don´t know the exact name.

Rilla.

 

[mugenbao]

That's a nozzle from a powerhead, maybe Maxi-Jet brand?

Might want to look at aquarium supply sites for such things, there are a ton of options. There are other styles to consider as well:

 

[yortbogey]

looks like sum kind of Aeration Nozzles from outdoor pond / water irrigation applications.....
http://www.bete.com/products/mp.html

 

[DTFuqua]

looks like a plain ole shower head to me.