iO HVAC Controls iO-Twin Universal Twinning Kit 549i The Cushion-Grip handle provides a

The Cushion-Grip handle provides a comfortable grip for optimal torque

Cut Depth:

Punches a 1 11/32” hole

Lead jacks:  2 banana plug jacks for testing open/close switch status (continuity between terminals)

iO HVAC Controls iO-Twin Universal Twinning Kit 549i The Cushion-Grip handle provides aiO HVAC Controls iO Twin Universal Twinning Kit The twinning kit is designed to allow a single thermostat to control two separate HVAC units. It can also be expanded to control a total of four HVAC units. The twinning kit can be used on common or separate ducted systems with single stage, multi stage and heat pump equipment. Only standard 18 gauge thermostat wire is required. Thermostats and HVAC units can be located up to 300 from the twinning kit