http://www.growell.co.uk/13mm-grommets.html3720Grommets (4mm, 6mm, 13mm, 19mm)http://www.growell.co.uk/media/catalog/product/g/r/grommets-_4mm_-6mm_-13mm_-19mm__web.jpg0.650.65GBPInStock/Growing Systems/Growing Systems/Irrigation Pipe & Components/Growing Systems/Irrigation Components<p><strong>Snuggly fit pipes through a drilled hole</strong> – use a Top Hat Grommet.<br /><br />First push (the right size) grommet inside the hole, then <strong>feed the pipe through the grommet</strong>.<br /><br />It’s a great way of connecting pipes to your tank or through a hole in any hard surface.<br /><br />There are 4 grommet sizes for you to choose from – <strong>4mm, 6mm, 13mm and 19mm</strong>.<br /><br />• For <strong>snuggly fitting pipework</strong> through <strong>drilled holes</strong><br />• 4 sizes - <strong>4mm, 6mm, 13mm & 19mm</strong><br />• <strong>Chance of leaks is minimal</strong></p> <p><strong>Snuggly fit pipes through a drilled hole</strong> – use a Top Hat Grommet.<br /><br />First push (the right size) grommet inside the hole, then <strong>feed the pipe through the grommet</strong>.<br /><br />It’s a great way of connecting pipes to your tank or through a hole in any hard surface.<br /><br />There are 4 grommet sizes for you to choose from – <strong>4mm, 6mm, 13mm and 19mm</strong>.<br /><br />• For <strong>snuggly fitting pipework</strong> through <strong>drilled holes</strong><br />• 4 sizes - <strong>4mm, 6mm, 13mm & 19mm</strong><br />• <strong>Chance of leaks is minimal</strong></p>00excluded_from_sitemap:No