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D & H Pump Service and United Pump Supply install and service fueling systems throughout Texas, New Mexico, Colorado, Arizona, and Oklahoma. DH-United also does aboveground and underground tank installation and removal with brands such as Xerxes and Containment Solutions, and our Environmental division (DH-Environemntal) does emergency spill response, spill containment, high vacuum extraction, and other environmental services. DH-United also does retail fuel management and sells brand names such as Gilbarco Fuel Systems, Verifone Ruby and Sapphire POS Systems. DH-United provides other C-Store equipment such as safes, Cornelius Ice Machines and refrgeration equipment, and Cree Lighting