<http://schema.org/postalCode>
""^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.discountfilterstore.com/air-filters-by-brand.html?amp%3Bsize_advertised=20+x+25+x+5&merv=MERV%3A11&size_advertised=20+x+20+x+5>