Based on the new regulation since 1st of June 2016, interlink rail is required for all types of glass balustrade. At Grand Glass, we stock three types of interlink rails: Top Capping Rail, Round Offset Rail and Slim Offset Rail.
For Top Capping Rail System, please check the link：http://www.grandglass.co.nz/product-detail/top-capping-rail-system/
For Round Offset Rail System, please click the link: http://www.grandglass.co.nz/product-detail/round-offset-rail-system/
Pictures above shows you the Slim Offset Rail with 316 S/S flat tube(50mm * 10mm) connected to glass panels with offset brackets. This type will provide extra secure and morden look for your glass balustrade. Meanwhile, a complete range of connectors for corners and ends of rail are available.
Please click the link for price guide : Detailed Interlink Rail Price Guide