Riverstone | MONT Premium 4x8 Ft Greenhouse Extension Kit Greenhouse Grow Box This heavy-duty extruded resin frame

This heavy-duty extruded resin frame improves both insulation and durability

The design differences include the UNIQUE AND UPGRADED 8MM TWIN-WALL POLYCARBONATE WITH A LIGHT DIFFUSING FEATURE

industrial-style workbench is made to last

3" W x 30" D x 44

Capable of freeze drying as much as 3

Riverstone | MONT Premium 4x8 Ft Greenhouse Extension Kit Greenhouse Grow Box This heavy-duty extruded resin frameThe MONT 4 foot extension Premium kit is specifically designed for the MONT line of greenhouses. The idea is simple, as your gardening greenhouse needs grow so can your greenhouse. The 4 ft extension kit allows for the expansion of your greenhouse. Each 4ft extension kit comes with a 2ft x 2ft roof vent with automatic opener and gutters. This is a Premium Package, which includes the MONT Greenhouse extension, and additional sections of Commercial