Graver Technologies unique and patented Turbine Pre-Filter design is a new and superior product that is designed to extend the service life of primary filters. 

• Our single piece design allows for prefilter change out without the air intake system being shut down. 
• Technicians do not have to remove the primary filters in order to install the Graver Technologies pre-filters. 
• The easy-to-use telescopic tool will insert the pre-filter over the primary filters. This can reduce the pre-filter change out time by as much as 75% over the current competitive design. 
• No Velcro^®, No tape and No bands. All seams are ultrasonic sealed, eliminating five of the six potential leak paths. 
• The Pre-Filter has removal straps that will allow the pre-filter to roll and keep the dirt and dust inside the pre-filter. 
• We offer the product in a variety of sizes and shapes.

Vecro^® is a registered trademark of Velcro