<http://schema.org/telephone>
"1-800-277-3458"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.discountfilterstore.com/undersink-water-filtration.html?flow_rate_range=1.5+-+2.0&life_months=6&media_primary_filter=Activated+Carbon+Block&micron_rating_nom=0.5>