The Gilmour Heavy Duty Metal Oscillating Sprinkler comes with 19 metal jets with water coverage up to 4500 square feet. The sprinkler has easy-to-use rotational dials that adjust the range. Gilmour Gilmour exists to meet the needs of serious gardeners and homeowners who demand the very best for their lawns and gardens. Over the course of several decades Gilmour has developed some of the most innovative tools on the market for pruning trimming watering fertilizing chemical application and cleaning. The quality of each product is unsurpassed and it is a priority to offer environmentally friendly products that help customers use natural resources responsibly.