I bought this Y/H? for $150 delivered on ebay,(i made a offer and it was excepted) its filled/topped off my large 106cu/ft bottle so many times in the last year I've lost count. Just finished refilling today. It takes about 20 minutes to top off from 250 bar to 320 bar. It is a 220v unit i had to change the plug on. You might notice the high pressure head is different than the other Y/H units. It says its rated for 5000psi but i will never find out as 4500 is great for me. just wanted to share with you guys and added a few pics.