Finding water slide rentals under $200 may be challenging as the cost of inflatable water slides typically ranges from $300 to $500 or more, depending on the size, quality, and location. However, you may be able to find smaller or less expensive options by searching for “kiddie water slides” or “backyard water slides.” These alternatives could be more affordable and suitable for personal or small gatherings. Always remember to prioritize safety and follow the manufacturer’s instructions when using any water slide.