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Add-It® Proportioning Fertilizer Injector
(Pint Size)

Inject Concentrates Into Drip or Watering Systems

Item Number: WMX200


In Stock! Ships from Northern CA.


In Stock! Ships from Northern CA.


Add-It® Proportioning Injectors are designed for home and garden use. Easy to operate for either drip and sub-surface irrigation or with sprinkler systems. Injects fertilizer at a consistent, predetermined ratio.

  • Minimum flow rate: 1/2 GPM
  • Minimum pressure required: 10 PSI
  • Hose threaded
  • Predetermined ratio (water to fertilizer or other concentrate): 280:1
  • 15 Gallons of water to empty injector unit - does not need a bypass since water continuing to flow through empty unit will not be damaging
  • Backflow device required between spigot and injector
  • Filter recommended when injecting fertilizers into drip systems
  • Unit is constructed of plastic and should be installed out of direct sunlight. Cover with fabric or other protection if installed in compromising light.
  • Larger size available

Note: This pint capacity unit has as maximum pressure rating of 60 PSI and is not designed to be operated under constant line pressure, no matter how low.


  • Hose Thread
  • Use with Drip Tape

Useful Information

Use Instructions

Videos & Articles



What You May Need

Shipping Information

Shipping Weight: 2.00 lbs. Dimensions: 11"L x 6.25"W x 4.5"H


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