UK Certifications

hansgrohe have over 1500 Regulation 4 approved products

With over 1500 WRAS, KIWA and NSF approved products, hansgrohe can ensure a wide offering tu suit every design preference and installation requirement.

When installing any product which carries or delivers water from the main supply it is a legal requirement that it complies with Regulation 4 of the “Water Supply (Water Fittings) Regulations”. These require that a water fitting should not cause waste, misuse, undue consumption or contamination of the water supply and must be of an appropriate standard. 

You can meet compliance with a large selection of products, making specifying easy and giving you peace of mind as we can ensure that our products will help your project met Regulation 4 of the Water Supply (Water Fittings) Regulations 1999 and Scottish Byelaws 2014.

Hansgrohe prides itself in having all of the relevant approvals, which is why we have a number of products that are TMV2 and TMV3 certified, which means that our thermostatic mixer valves can be used in high risk areas of health care premises.


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