HAYWARD Hayward circular main drain eligible IAPMO certified to meet the latest US VGB mandatory safety standards (ASME A112.19.8a-2008). And it is the only anti-drowning and has certified anti-vortex main drain. American "HAYWARD Hayward" Group headquarters is located in Elizabeth, New Jersey in the United States. When the growing number of customers around the world began to look for energy-efficient, superior quality swimming pool equipment, the Hayward brand has become their common choice. As a global industry leader, Hayward committed to providing customers full system solutions. Leading the latest technology industry technology development of energy efficient products cover a variety of equipment needed for the pool, including the efficient self-priming pumps, filtration equipment variety of filter media, electric and gas heaters, air-source heat pumps, pool automatic sewage suction machine, Electronic salt chlorinator, underwater lighting systems, pool safety systems, anti-drowning mud plastic pipe to the exhaust, swimming pool equipment, automatic control systems and swimming water quality monitoring alarm systems. △ Digital Hayward: 50 years, 50 years of experience focusing on swimming pool equipment research and development, selling the world! 20 years, Hayward products into China for more than 20 years! 2000, 3 continents with more than 2,000 employees! 650 million, with annual sales of $ 650 million!