Free Shipping See Details Medium flow - good for multiple small greenhouses. Easy to use providing accuracy and reliability at all flow rates. The A30 is compatible with most chemicals and easy to install and maintain. Excellent for medium flow applications, this model is able to withstand a
Medium flow - good for multiple small greenhouses. Easy to use providing accuracy and reliability at all flow rates. The A30 is compatible with most chemicals and easy to install and maintain. Excellent for medium flow applications, this model is able to withstand a variety of chemicals. Dosmatic's outside ratio adjustment allows users to vary solution proportions even while the injector is in operation. The NEW On/Off Switch allows the user to discontinue the chemical injection by turning the switch to the off position, effectively letting water pass through.
Accurate dosage rates
Easy to use and maintain
Chemicals do not enter the motor
Available as a mobile unit
Flow Rate - Min/Max
Feed Ratios - Min/Max
Operating Pressure - Min/Max
A30 - 2.5%
0.25 gph - 30 gpm 0.9 l/m - 6.8 m3/hr
0.20% - 2.5% 500:1 - 39:1
5.0 psi - 100 psi 0.34 bar - 6.9 bar
1" npt - 3/4" hose 1" bsp - 3/4" bsp
This item ships free - almost anywhere in the Continental United States!
On rare occasions addresses with limited access such as islands or major metropolitan areas (ie: New York City) may incur additional delivery fees; if so, you will be contacted to confirm the extra shipping cost before your order is processed. Shipments to Alaska or Hawaii qualify for free shipping to any West Coast port. Please contact us for special shipping rates from the West Coast to Alaska or Hawaii.
LTL Freight Type
Standard Drop Shipment Code
Available for Drop Shipment
Item Tracking Code
Advantage superior to Hydrosystem Superdos
As a wholesale greenhouse grower, we moved to the Advantage line from Dosmatic several years ago because of injection issues during low flow in Dosatron injectors which we were currently using at the time. Unfortunately Hydrosystems bought out Dosmatic several years ago and ceased production of the Advantage Injector, replacing it with the Hydrosystems Superdos. What we discovered is that the Superdos failed much more frequently, bled clear water back into the concentrate tanks and an overall had much higher maintenance requirements. But the single most frustrating thing about Superdos injectors was the inability to inject enough concentrate under low flow rates because of its failure to pickup enough concentrate. So needless to say I was overjoyed when Hydrosystems decided to begin manufacturing the Advantage line again. I have begun replacing my Superdoses across the range with the Advantage injectors which run the same injection rate under low flow as high flow, having verified this with PH and EC testing. When testing the Superdos injectors the mix would get unacceptably weak with lower flow rates. I also expect to have significantly less problems with the Advantage injectors if the new Advantage line is just like the original from Dosmatic. Time will tell.