<http://schema.org/telephone>
"1-800-277-3458"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.discountfilterstore.com/undersink-water-filtration.html?capacity_range=5%2C000+-+10%2C000&media_primary_filter=Granular+Activated+Carbon&price=-10>