Jeez where has this been all my life.  When my old grandpa's metal can sprayer bought the farm, like most people all I could find in the stores were those cheapo plastic ones from Roundup or whatever.  But this is so well made, so easy to clean, that I'm thrilled each time I get a chance to use it, just like my Makita drill.  I love the nozzle rack that doubles as a wand mount.  Mine came with two fan nozzles, and they both sprayed very consistently but too wide for my purposes.  So I got their 0.5 GPM fine spray nozzle that isn't really a mist but is a nice 20 cone.  The all brass wand on this sprayer is the only somewhat weak link.  It's easy to bend it if the sprayer falls on it for example.  Not a big deal at all, just sayin' you might want to avoid that.  One person who reviewed this sprayer here I believe warned people how the lubrication inside the pump was not suitable for use on plants.  I'm not convinced by his argument because the manufacturer's package specifically states that the sprayer is designed for and intended to be used in Agriculture among other things.  I'll probably call Chapin at some point to get the straight answer, but my parsley and tomatoes show only happy responses to it at this point.