Water
NSF provides an extensive range of services for the water industry to help ensure the quality and safety of products in the marketplace. Separate from helping to facilitate consensus-based standards, NSF’s water programs test and certify products for drinking water, pools/spas, plumbing, plastics and wastewater. Our global offices provide comprehensive services, quality support and superior knowledge to help you grow your business while saving time and money.
Services by Type
Services By Sector

Municipal Water Treatment
Our expertise encompasses all areas of public drinking water distribution from water storage tanks to water meters and individual components.

Plumbing
NSF’s comprehensive testing and certification services help ensure your products comply with required performance standards and plumbing codes.

Plastics
NSF is the most widely recognized and respected certification mark in the plastic piping industry.

Residential Water Treatment
Differentiate your product in a competitive market by obtaining certification for your water treatment or filtration system, component, replacement element or filter media product.

Water Treatment Chemicals
Our expertise encompasses all areas of water distribution including water treatment chemical testing, certification, research and development.

Wastewater
NSF has over 40 years of experience in onsite wastewater treatment systems.

Recreational Water / Pools / Spas
NSF’s inspection, testing and certification services can help ensure you comply with all major health codes, model building and construction codes.

Municipal Water Treatment
Our expertise encompasses all areas of public drinking water distribution from water storage tanks to water meters and individual components.

Plumbing
NSF’s comprehensive testing and certification services help ensure your products comply with required performance standards and plumbing codes.

Plastics
NSF is the most widely recognized and respected certification mark in the plastic piping industry.

Residential Water Treatment
Differentiate your product in a competitive market by obtaining certification for your water treatment or filtration system, component, replacement element or filter media product.

Water Treatment Chemicals
Our expertise encompasses all areas of water distribution including water treatment chemical testing, certification, research and development.

Wastewater
NSF has over 40 years of experience in onsite wastewater treatment systems.

Recreational Water / Pools / Spas
NSF’s inspection, testing and certification services can help ensure you comply with all major health codes, model building and construction codes.