<https://growgenius.co.uk/product/iws-oxypot-xl-dwc-kit/#product>
<http://schema.org/description>
"IWS Deep Water Culture DWC Oxy Pot XL\r\nRarely is something so effective so simple to use. Oxypots are very popular because they're simple and the results fantastic.\r\n\r\n \tAir pump &amp;amp; air stones\r\n \t2ltrs clay pebbles\r\n \tAll required tubing/fittings.\r\n \tDimensions: 83 x 58.5 x 38cm\r\n \tTank volume: 70 Litres"
<https://growgenius.co.uk/product/iws-oxypot-xl-dwc-kit/>