John Guest speed fit connection for water filter and water coolers are stocked by Aqua One Australia.

Genuine John Guest UK Premium Fittings.
Available in Metric and Imperial.
1/4″, 5/16″, 3/8″, 1/2″,  3/4 “, 4mm, 6mm, 8mm, 10mm, 12mm and more.
Whatever your job, John Guest will make any job an easy job.