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Because PFR-97 20% WDG is a biological control and efficacy occurs over several days
Variety of different colors in one multicolor pack: yellow
boxed and labeled for ease of use
Works to descale irrigation systems and decompose residual organic matter
The HS-1 from TrolMaster is used to control commercial dehumidifiers
TrolMaster 240V Humidity Device Station（DSH-2） Sun System Because PFR-97 20% WDG isThe TrolMaster DSH 2 Humidity control device modules (240V) allow the user to easily connect and control standard humidifying or dehumidifying devices to the Hydro x. The DSH modules are rated @ 10 amps. *Use with dehumidifiers less than 7 amps to avoid current overload. LED status:* Blinking green FAST: If the LED is blinking quickly, that means the module has not been addressed to the controller OR that module does not have a good connection to the