Riverstone | General Purpose Greenhouse and Small Building Exhaust Fan System Duramax Rolling Workbench The silicon mats will protect

The silicon mats will protect your trays and ease cleanup

for those who choose to grow year-round

Under cold and hot conditions the Premier Pump will pull a deeper vacuum than the Standard Pump

This provides storage accessibility from either side of the shed

Heavy Duty 4 in casters

Riverstone | General Purpose Greenhouse and Small Building Exhaust Fan System Duramax Rolling Workbench The silicon mats will protectThe 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,