You would need to get a 3/4' garden adapter for connecting it up.
I also got a float shut-off valve, 25 feet of extra ro tube and a 150 psi pressure gauge and Teflon tape came to $258 inc shipping
Unit has arrived, works well i had a few problems to start off but that was me not putting the connectors in properly.
Good quality, not sure on tds as my tester hasn't arrived yet but i can taste a difference.
Well wort the $255