DUMBWAITERS BY FOX VALLEY (formerly Waupaca) Ask An Expert View Brochure (PDF) Send Me a Brochure Request a Quote Or give us a call: 888-257-5576 Fox Valley Dumbwaiters (formerly Waupaca Dumbwaiters) are hard to beat when it comes to ease of use and customization. These dumbwaiters come with a lift capacity of 100 to 500 lbs., the choice of a roll top gate or a metal bi-parting gate or door, and are made with powder-coated or stainless steel. The Fox Valley residential dumbwaiter also has several upgradable options.