Review on Pokin Motorized Nozzle Rocket Vacuum by Amy Johnson

I don't think this was made for the Shark Rocket Vacuum HV301 model. It definitely doesn't match the original hardware. BUT, you can make it fit and it will work just fine. It's a few millimeters thicker, the wire spirals are wider (crossing the ends of the receiver) and a few centimeters longer than original equipment. I took wire cutters and cut off a few inches, then I put some petroleum jelly on the outside of the tube and pushed it in (it screws in reverse - right loose and left tight). It took a few tries to balance everything, but it turned out a lot better than I expected. Much luck!