Worx WA4053 Leaf Collection System For WG500 TriVac (Discontinued by Manufacturer)
The Leaf Collection System is an accessory that converts the TriVac into a high capacity leaf collector. Easily mulch and collect 550 gallons of leaves down to a small enough size that allows them to fit into a 55 gallon trash can. That's an 11:1 mulch ratio.  Made of breathable cotton/nylon.  Uses nylon rope with quick-loc clasp to attach to trash cans. Includes leaf bag to cover.