These Mylar bags are food grade and rated for long term storage

The design differences include the ability to accommodate large numbers of people (students) and allow them to become a part of the growing process

Snow Load: 30lbs/ft2 / 150kg/m2

The Mojave Edition Greenhouse offers the ability to grow when you are ready to expand with the 4ft Extension Kit that can be purchased anytime in the future

Riverstone | General Purpose Greenhouse and Small Building Exhaust Fan System Raised Bed These Mylar bags are foodThe RSI General Purpose Greenhouse & Small Building Electric Powered Exhaust Fan System is designed to fit all structures. The general design is for low profile structures that are in need of air. Our fan is proudly made in the USA and truly designed to fit all structures, but the purchaser needs to be able to retrofit the exhaust system to their own structure since each structure and building materials are different. Two ways our fan can be mounted,