You have to be a sucker to get one of these, or you can fill it up from a tap and then do the syphoning.
Great product, great price but corny review.
Easy to use with a bench capper (available at many outlets, but best value at Brew 2 Bottle)
Caps seal every time and hold pressure in the bottles.
Arrived well packed. Just how i expected them to be. Quick sterilise and ready to go. I use a heating band and it does 4 of these perfectly.
Found what I needed and a few bits extra, decently priced, fast service , have used numerous times for brewing equipment and also bottles and all have been useful parts of my set up.