WRAS vs NSF Certification: Which Approval Your Market Requires, and How to Check the One You Were Sent
The practical difference between WRAS and NSF certification is jurisdictional, not qualitative: WRAS Approval is the route British water companies recognise for demonstrating that a fitting meets the Water Supply (Water Fittings) Regulations, and NSF/ANSI/CAN 61 is the health-effects standard North American plumbing codes are written around. Neither one substitutes for the other. A buyer […]
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