Pool, Spa and Recreational Water Standards

  • Overview
  • Standards
  • Why Work With NSF?

NSF has worked with key industry stakeholders to make pools, spas and recreational water products safer for many decades. NSF/ANSI 50 covers everything from pool pumps, strainers, variable frequency drives and pool drains to suction fittings, grates, and ozone and UV systems.

Standards and protocols can provide credibility and industry acceptance for new or growing technologies and products.

For standard development or revision status, visit the NSF Online Workspace. Get involved with NSF standards and protocol development by joining a Joint Committee. The NSF Standards Department is seeking experts to serve on various NSF joint committees. Learn more.

To purchase standards, visit the NSF Bookstore website.


NSF/ANSI 50: Pools, Spas and Hot Tubs

NSF/ANSI 50: Equipment for Pools, Spas, Hot Tubs and Other Recreational Water Facilities was developed by a committee of experts comprised of manufacturers, public health officials and users. No other standard in the world has such complete evaluation and testing criteria.

NSF/ANSI 50 specifies requirements for the material health effects, corrosion resistance, performance, disinfection efficacy, durability testing, design and construction, marking and user instructions for many types of equipment used at a water-park, pool or spa equipment and components. The standard covers every form of pool and spa, public and private, and every component, from pumps and chemicals to suction fittings and water test devices. Equally important, NSF/ANSI Standard 50 is in a constant state of evolution, incorporating the latest product and material test methods and regulations.

Why Work With NSF?

NSF/ANSI 50 certification for pools, spas, hot tubs and other recreational water facilities covers both public and residential applications. It specifies requirements for health effects, design and construction of equipment as well as the performance testing, durability and validation of equipment and components including:

  • Aquatic play/exercise equipment
  • Heaters and heat exchangers
  • Automatic controllers
  • Ozone and UV systems
  • Brominators and chlorinators
  • Pool alarms, pool/spa safety covers
  • Chemicals, generators, feeders
  • Pumps and strainers
  • Claim validation
  • Skimmers, grates, overflows
  • Research and development
  • Coatings, shells, liners, flumes
  • Spa/pool hose and piping
  • Swim spas, spas, hot tubs
  • Copper/silver ion generators
  • Energy efficient testing
  • Suction fittings, SVRS, SVLS
  • Filters, filter media, surge tanks
  • Valves, diverters, manifolds
  • Fittings, jets, returns
  • Water test devices (pH, Cl)

As the recreational water industry’s leading testing and certification organization, NSF has the qualifications and reputation to help your business meet the needs of the market and get the recognition and acceptance that is critical to your company’s success.

Contact NSF International

  • Mailing List

  • Or contact the nearest NSF location
  • [x] Close

See all related news