So you want a reliable atv sprayer??
Both seaflo atv sprayer have the same tank,lid and filter under the lid. The Sprayequip units have upgraded to their stringest quality requirements specially for them> Eg: Premium Spray Lance,Pressure Regulator,Pressure Guage,pump filter and a larger 120 psi / 7.6 litre per min pump. With these units you can run a pistol grip spraygun(with a finer nozzle) which are excellent for serious weed spraying or gorse spraying. With the pressure guage you can decrease the pressure and use of a spray boom as well. These parts that have been upgraded are the nessary running gear of the sprayer to withstand tough NZ conditions.
The other seaflo sprayers model have a lighter duty spray wand,smaller spray pump(Usually only 5 lpm /100 psi), no pressure guage or regulator which means they are manuafactured to a lower dollar value as they do not have the quality extras that teh sprayequip atv sprayer are made off.Those lighter quality units are most suited to a very small property owner that only would use it once or twice a year and not continous usage. These units are most suited to finer spraying around home gardens or plants in teh garden as it has a smaller pump and lighter wand so you can do more critical spraying. Our units may not be a good fit for your usage !! It comes down to if you want to spray finely around weeds in the garden or want a powerful sprayer to knock those annoying weeds on the driveway/along races/ along fence lines/sections/ paddocks and get rid of all that gorse etc.