A & A Equipment welcomes customers from West Siloam Springs, OK area. If you are in the West Siloam Springs area, contact us at 479-524-2215 today to place an order or request a service by phone (M-F 8:00 AM - 4:30 PM). Looking for pressure washers and pressure washer parts or accessories? In business since 2000, A & A Equipment is the largest pressure washer dealer in the four-state area. We are locally owned and service what we sell. We carry Whitco pressure washers, Alkota pressure washer parts and supplies, Airgas tank rentals, Miller welding supplies, car and utility trailers, commercial cleaners, and residential cleaners.