Triple Blower Kits - found at - LUWA: Distributor of Superior Appliances by Design
Triple Blower 8" Round and 6" Round Rear Vent Kit-VKIT-8R-6R
Triple Blower 10" Round Low Pitch Roof Vent Kit-VKIT-10LP
Triple Blower 10" Round High Pitch Vent Kit-VKIT-10HP