Verify your shower filter actually removes chlorine and improves water quality by looking for NSF/ANSI Standard 177…
Standards & Compliance
3 Articles
Authoritative guidance on regulations, product certifications, and plumbing codes—what they mean, how to meet them, and how they impact filtration, softening, and home systems.
Look for the ANSI/NSF Standard 61 certification mark on any water filter, faucet, or plumbing component before…
Yes, backflow preventers are required by code in most jurisdictions across the United States. The Uniform Plumbing…