We're all about rainwater harvesting. Water tank accessories, rain heads, first flush diverters, emergency rainwater storage, tank gauges and accessories. Select from our products below.

If you are interested in becoming an agent for Rainline's range of products we would love to hear from you, please drop us a line at This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Proud distributors of the Garantia and Rain Harvesting range of products

Here at Rainline we are constantly researching, developing and sourcing new and innovative products to ensure your family receives the purest healthiest water possible.Why harvest our own rainwater?


Happy Customers!

"What a pleasure to do business, completed with the purchase of your 6Stage Filter System. What a machine. It's so simple to install and I found it to exceed my expectations in every regard. This beautiful, clean alkaline water it produces is just perfect and so soft in the mouth.Well done Rainline. You have a great product worth every cent".

Phillip Olson / Palmbeach Bungalows / Waiheke Island

"We bought this Hydrocycle water filter system from Rainline Ltd, to clean up our water quality and it is FABULOUS! Not only was it easy to install (must be because hubby is most definitely NOT a handyman!) but the fact that it cleans itself by back-flushing on a pre-programmed regular basis is the icing on the cake! No worries about remembering to clean the filter. It is such a pleasure to be drinking bottle quality water! Our dealing with Rainline was an absolute pleasure and their back-up, personal service is greatly appreciated. I would recomend Rainline Ltd and especially the Hydrocycle system wholeheartedly!!"

Marilyn Mapu / Onepu / Whakatane