<https://huddersfieldgastrade.co.uk/product/calor-gas-brand-0-75m-pol-x-w20-caravan-gas-hose-pigtail-with-nrv-5-year-warrant/#product>
<http://schema.org/description>
"CALOR GAS APPROVED WITH A 5 YEAR WARRANTY 0.75m (30\") POL x W20 standard hose High quality 30 inch POL x W20 LPG hosing designed for use with Manual &amp; Auto changeover gas Regulators and wall blocks. For Caravanning &amp; Home use FITTED WITH NON RETURN VALVE"
<https://huddersfieldgastrade.co.uk/product/calor-gas-brand-0-75m-pol-x-w20-caravan-gas-hose-pigtail-with-nrv-5-year-warrant/>