These single phase electric trash pumps are perfect for numerous residential industrial, and construction applications with debris. The Honda WSP33, WSP53, and WSP73 will take debris up to 0.375 inch diameter. The Yamaha model will take up to 5/8 inch diameter. Multiquip models will take up to 1 inch. Honda's WSP50 and WSP100 will handle up to 2 inches.