Metal Oscillating Sprnkler w/Metal Nozzles, Waters up to 3000 Sq. Ft. The Turbo Oscillating Sprinkler is ideal for large lawns. The quiet turbo design provides a gentle rain that is great for newly seeded areas. The range is adjustable to water only what you want. Melnor was founded in the USA in 1946, two years later the first innovative Melnor oscillating sprinkler was introduced. While there have certainly been changes through the years, there has never been a change to our committment to offer new and innovative ways for the home gardener to maintain lush yards and bountiful gardens. For more than sixty-years, Melnor has been a trusted partner to retailers and homeowners.