20'x95' Greenhouse Frame Quonset hoops A single 120-240 volt “trigger”

A single 120-240 volt “trigger” cable on the 4RS-1 connects to your device / control module

The 10-year heat exchanger warranty is hard to beat

Height: 10 inches

As with all of the main controllers from TrolMaster

This product can be combined with a motor kit to open with power

20'x95' Greenhouse Frame Quonset hoops A single 120-240 volt “trigger”Hortitech greenhouse frames are built for resilience and are competitively priced. They are made from high grade galvanized steel that can withstand wind and snow. This product is the greenhouse frame only. When you buy greenhouse frames from Hortitech, you get greenhouse frames direct from the manufacturer that are 100% American made with no cheap pre fabricated foreign parts. This product is ONLY the steel greenhouse frame. All steel, purlin, and