New Zealand’s leading manufacturer of K-Line irrigation, pipe, water storage tanks & effluent dispersal systems

RX PLASTICS LTD is one of New Zealand's largest manufacturers and distributors, specialising mostly in plastic
products for water transport and storage.

Our premium brands include the K-Line™ irrigation and effluent range, K-Line™ G-Set irrigation, Max water tanks and AirTech™ wastewater treatment systems.

We are an innovative and progressive company with more than 30 years experience in providing industry solutions using extrusion, injection moulding or rotomoulding production.


clearwater mussels sth island farmer of the year

Sponsors of South Island Farmer of the Year

Nominations for the next South Island Farmer of the Year competition are now open, closing on August 1, 2016. Any farmer in the primary production sectors can be nominated, including agricultre, horticulture, viticulture and aquaculture.

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Featured Product

rx plastics bsp fittings

BSP Threaded Fittings

We have redesigned our range of BSP Threaded fittings, making them easier to use than ever before. The new fittings range is engineered with glass reinforced nylon and can be used with a wide range of chemicals used for horticulture and agriculture.

Features of the fittings include high thread accuracy, rounded edges for better handling and ergonomic handling.

From Our Blog

Designing irrigation for hill country

Designing an irrigation system for hill country - no matter what part of the world you are in, requires a different set of considerations due to changes in elevation, slopes and topography. As... Read more...

Eliminating pipeline airlocks with pressure release valves

Behind the success of any irrigation scheme, large or small, is the ability to maintain a constant water pressure. Both low and high pressure systems can be severely compromised by air in the... Read more...

Managing surface water with culverts

As mid-winter approaches, management of excess surface water becomes a high priority for those on the land, particularly in areas of heavy traffic such as gateways or around small stream tributaries... Read more...