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ORIFICE (Sold Each White) * ORIFICE FOR MODEL 110.

Relay * Relay For Models 110 And 112.

ORIFICE (Sold Each Red) * ORIFICE FOR MODEL 112.

Orifice (Blue) * ORIFICE FOR MODEL 440.

Manual humidifier control 24V * Manual humidifier control. SPST switch. Range 15 to 45% RH. Foam gasket for mounting to return duct. Can be wall mounted.

Electronic Humidistat 24 volts.

Current Relay Switches 24V * Current Relay Used To Interface Humidifiers With All Types Of Forced Air Heating And Ac Equipment. Relay Contacts Rated At 0.5 Amps @ 24V