The Expansion Kit for Ventmaster by Orton is for venting 2 kilns off of one Ventmaster (VENT-M9) blower. Easily connect the four foot length of 2" black exhaust hose from the second kiln to the second line intake line on the Ventmaster (VENT-M9). All Ventmasters come with 2 intakes. If you are not using the second line, cover the hole with supplied cap.
