I have the Northstar 16 gallon boomless sprayer and it has served me well. Have had it going on 9 years now and still going strong. I did have a problem with pump one time not running when switch activated. Called northern and they sent me new pump out no charge. I also replaced the plastic valves on mine with metal 1/4 turn valves cause mine were leaking.
Rinse it well after using and should last you many years. Good luck!