20'x45' Greenhouse Frame Quonset Sidewall Height/Truss Spacing:4'/5' This model uses MERV-11 filters

This model uses MERV-11 filters that capture particles like mold spores as small as 1 micron

Length: 10 in

The controller simultaneously powers two low voltage motors by converting AC power to 24 volt DC power

It consists of a light trap housing that is sized to duct your ventilation between your light trap and shutter

20'x45' Greenhouse Frame Quonset Sidewall Height/Truss Spacing:4'/5' This model uses MERV-11 filtersHortitech greenhouse frames in 20'x45' are built for resilience and are competitively priced. This 900 square foot greenhouse is one of the smaller greenhouses that we offer and is a good size for smaller greenhouse growers. The 45 foot length is optimized for the standard size options for greenhouse plastic. They are made from high grade galvanized steel that can withstand wind and snow. When you buy greenhouse frames from Hortitech, you get