This Front Load Dryer Vent Test Kit Is A Test Kit That Ensures Your Dryer'S Vent System Is Operating Properly. This Kit Includes Two Tests Depending On The Location Of Your Dryer'S Lint Screen: One For The Lint Screen In The Top Of Your Dryer, And One For The Lint Screen In The Front Of Your Dryer. Test Kit Mounts Inside The Dryer. Installing This Accessory Will Not Require Tools, Disassembly Of The Dryer Or Repair Experience.