<http://schema.org/telephone>
"1-800-277-3458"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.discountfilterstore.com/undersink-filters.html?brand=Harmsco&capacity_range=2%2C500+-+5%2C000&dir=desc&micron_rating_nom=10&order=position>