Check the listing for details. Fill-O-Matic Premium Combo Automatic swimming pool fill valve-R. Condition: Used. Listed at 49.99 USD. This the the newest model that includes an 18" stainless steel flex hose. The Fill-O-Matic 2000 is an adjustable automatic swimming pool and hot tub fill valve. It is adjustable from 2" to 9". It is assembled by hand in San Angelo, Texas. We designed and built the Fill-O-Matic because the owner of DesignStein Product Development needed a solution to fill his swimming pool and found there was not a high quality, reasonably priced solution on the market. Each component was selected based on the characteristics and longevity of the material. Some of the high-quality features include: · 100% rubber base. This environmentally friendly solution will not slip and slide like plastic bases and has a lifetime warranty. U.V. stabilized acrylic bracket will notoxidize or become brittle. The plastic used by competing units degrade and become brittle relatively quickly. Marine grade stainless steel will remain corrosion free for years. The float assembly is 100% American made and has been proven extremely reliable in 100,000’s of installations around the world.