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Dema 204B Brass 1/2 Inch B-Series Injector - Ryton Screw, 19 GPM

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1.11 lbs
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Durable brass adjustable chemical injector from Dema Engineering. From the Dema B Series. 1/2" ports, 5.7-19 GPM flow rate range.
Prep 65

Prop 65


Technical Specifications

Inlet Port: 1/2 inch
Outlet Port: 1/2 inch
Max GPM: 19
Max PSI: 700

Product Description

19 GPM B Series Injector

Dema B-Series chemical injectors are designed for maximum adjustability. An external metering screw facilitates better water flow. Durable construction ensures consistent and dependable performance in any work environment.

Size: 1/2" NPT
  • Low pressure loss (35% across injector)
  • Metering knobs for various chemicals
  • Maximum Induction: 36 oz/min
  • Flow Range: 5.7-19 GPM
  • Ryton Screw Metering Knob
  • External water flow adjustment
  • Maximum Pressure: 700 PSI @ room temperature, 500 PSI @ 150° Fahrenheit

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm (For more information go to

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