- (1) complete base kit

Automatically opens your roof vent as the greenhouse heats up

The Premium Package Includes:

For professional installation services

Drop Door Kit

Hoklartherm | FREE 6 inch High Foundation Frame with select Riga Greenhouses Size:RIGA S3 (7'8" W x 10'6" L x 6" H) (Free with greenhouse) - (1) complete base kitAdd this Foundation Frame to your cart with a corresponding Riga greenhouse and the price for the Frame will automatically become FREE with your purchase. Applies to RIGA S2, S3, S4, L3, L4, and L5 greenhouse models when ordered and delivered together with the Foundation Frame, during this month only! This 6" high Foundation Frame only works with the Hoklartherm RIGA Greenhouses. It can be used to replace a concrete or wooden footing. It will be