Paterson rinsing hose (attachment?)

I have seen a few videos where a hose is placed in the centre column to rinse the film while it is still in the tank. Is that some sort of adapter, special hose, ...? I have never seen one in the flesh, so to speak, but i think it would be very handy. Does anyone know where I might find one?

It's called Paterson Force Film Washer and it's easy to find. It should fit most faucets. I have one.

Yes, they certainly did exist - I don't know whether they are currently made. The nose of the hose was a snug fit into the neck of the funnel lid of the tank. However, using it that way meant you were bound to accumulate a puddle of water of uncertain cleanliness in the funnel around the hose. So I have always used it with the tank lid off, pushing the end into the centre column. The rinse water is then forced through the film from the bottom up, exiting over the tank sides. However, the hose is not such a tight fit into the centre column, and frankly you might as well use a piece of rubber hose without the special end.

One useful thing about the design was that it was a tight fit over the lower end of the Paterson filter funnel, allowing you to reverse flush the filter screen.

Online auction sites are probably your best bet.

It shows as a current item on the Paterson website: https://www.patersonphotographic.com/product/paterson-force-film-washer/
Henry's has it as a special order item: https://www.henrys.com/Paterson-Force-Film-Washer/5637227283.p?color=Yellow&size=N/A&style=New
Both B&H and Adorama also list it.

Fotoimpex also have it in stock.

You can also search for a Jobo Cascade, used or new. It´s compatible with all the tanks I use (also more recent Paterson tanks).