Recently the lower hose in our Shark UV450 broke. Hating the idea of buying a new Shark, I found Josh's excellent repair video online. Watched it several times and decided to try to make the repair myself. Although he demonstrated a repair on a model 320, I decided the units were much the same. Ordered the replacement hose and adhesive from Vacuums R Us. The price was reasonable and the correct parts arrived promptly. Followed the steps as shown in the video and made the installation of the new hose without incident. Our Shark now works like new and and we didn't have to buy a new one. Great! Mike G.