Waterless Trap Seals for Every Drain Size. Shop All Products
Green Drain NSF/ANSI 2 food equipment certification Food Equipment Certification

NSF/ANSI 2 certified for food equipment safety.

Green Drain is independently certified by NSF International under the NSF/ANSI 2 standard for food equipment. Dual certification covers both the company (Cornelius, NC) and the manufacturing facility (Guangdong Province, China). All 8 models are listed.

What NSF/ANSI 2 certification means.

NSF/ANSI 2 is the North American standard for food equipment materials, design, fabrication, and performance. Published and maintained by NSF International in Ann Arbor, Michigan, the standard governs equipment that comes into contact with food or is used in food handling environments. It is one of the most widely referenced food equipment standards in commercial kitchen design and food facility construction.

When a product carries NSF/ANSI 2 certification, it means an independent third party has evaluated the product against specific criteria and confirmed that it meets the requirements of the standard. This is not a self-declaration. NSF International conducts the evaluation, issues the certification, and performs ongoing surveillance audits to verify continued compliance.

What NSF evaluates

Certification under NSF/ANSI 2 requires that the product meets requirements in four key areas:

Dual certification: company and facility

Green Drain holds two NSF/ANSI 2 certificates. Certificate C0571796-01 covers Green Drain Inc. as the company (Cornelius, North Carolina). Certificate C0571797-01 covers the manufacturing facility in Guangdong Province, China. This dual certification is significant because NSF does not just certify the product design. They also audit the manufacturing facility to confirm ongoing quality control and consistency in production.

This means that every Green Drain unit produced at the certified facility is authorized to bear the NSF mark. The manufacturing processes are subject to periodic NSF surveillance audits, providing an additional layer of quality assurance beyond the initial product evaluation.

Testing and evaluation process.

NSF International's evaluation of Green Drain followed their standard protocol for food equipment certification under NSF/ANSI 2. The process is rigorous, independent, and ongoing.

Product Evaluation

NSF engineers evaluated the Green Drain design, materials, and construction against NSF/ANSI 2 requirements. This included material composition analysis, surface finish evaluation, cleanability assessment, and verification that the design does not harbor bacteria or food particles. The silicone valve material was evaluated for food environment suitability.

Manufacturing Facility Audit

NSF conducted an on-site audit of the manufacturing facility in Guangdong Province, China. The audit verified quality control processes, material sourcing, production consistency, and the facility's ability to produce units that meet NSF/ANSI 2 requirements on an ongoing basis. This resulted in a separate facility certification (C0571797-01).

Official NSF Listing

Following successful evaluation and facility audit, Green Drain was officially listed in the NSF database. The official listing was recorded on April 2, 2024. All 8 models (GD1.25, GD15, GD2, GD3, GD35, GD4, GD5, GD6) are listed as "Waterless Trap Seal for Floor Drain" under the food equipment category.

Ongoing Surveillance

NSF certification is not a one-time event. NSF International conducts periodic surveillance audits of both the product and the manufacturing facility to verify continued compliance. This ongoing oversight ensures that every unit produced continues to meet the standard, not just the units submitted for initial testing.

Industries that require NSF/ANSI 2 certified equipment.

NSF/ANSI 2 certification is particularly important in industries where food safety compliance is regulated, audited, or required by customer contracts. The following industries represent the primary markets where NSF/ANSI 2 certification influences purchasing decisions for drain equipment.

Commercial kitchens and restaurants

Restaurants, hotel kitchens, casino food service, and institutional dining facilities operate under health department oversight. NSF-certified equipment streamlines inspections and demonstrates compliance with food safety material standards. Floor drains in commercial kitchens collect food particles, grease, and wash-down water, making the drain device's material safety directly relevant to food safety compliance.

Learn more about Green Drain for restaurants and food service.

Food processing and manufacturing

Food processing plants, packaging facilities, and distribution centers operate under USDA, FDA, and third-party audit requirements. NSF/ANSI 2 certification supports compliance documentation for SQF, BRC, FSSC 22000, and other food safety management systems. Floor drains in processing environments are classified as splash or spill zone areas where food may contact the drain device.

Learn more about Green Drain for food processing.

Healthcare food service

Hospital kitchens, long-term care facility kitchens, and healthcare dining operations must meet both health department requirements and healthcare facility standards. NSF/ANSI 2 certification provides the food equipment material safety documentation that healthcare facility managers require when specifying drain equipment.

Learn more about Green Drain for healthcare facilities.

Hospitality and hotels

Hotel kitchens, banquet facilities, room service operations, and resort food service areas require food safety certified equipment. Brand standards for major hotel chains often specify NSF-certified equipment for kitchen and food service areas. Green Drain's NSF/ANSI 2 certification meets these brand-level requirements.

Learn more about Green Drain for hotels and hospitality.

Schools and universities

K-12 school kitchens and university dining facilities operate under state health department regulations and often follow USDA nutrition program requirements. NSF-certified food equipment is commonly specified in school construction and renovation projects. The certification provides documentation for school district procurement processes.

Learn more about Green Drain for K-12 schools.

Breweries, wineries, and beverage production

Beverage production facilities require food-safe equipment in processing areas. Floor drains in breweries and wineries collect product spillage, wash-down water, and cleaning chemicals. NSF/ANSI 2 certification confirms the drain trap seal material is suitable for these environments.

Learn more about Green Drain for breweries and wineries.

8 Models Certified GD1.25 through GD6, full product line
2 NSF Certificates Company (C0571796) + Facility (C0571797)
2021 Certified Since Certificate date: March 3, 2021
ISO 17065 Accreditation ANSI accredited + Standards Council of Canada

Why NSF/ANSI 2 certification matters.

For specifiers, facility managers, and food safety professionals, NSF/ANSI 2 certification directly answers the question: "Can I install this in my commercial kitchen or food processing facility without creating a food safety compliance issue?" The answer is yes.

Many health departments, food safety auditors, and facility managers require or strongly prefer NSF-certified equipment for commercial kitchens, food processing plants, and food service operations. The NSF mark is one of the most recognized third-party certification marks in the food equipment industry. The FDA Food Code references NSF standards for food equipment, so facilities that use NSF-certified equipment demonstrate a commitment to food safety that health inspectors and auditors recognize during inspections and third-party food safety audits.

Architects, engineers, and food facility designers can reference NSF/ANSI 2 in project specifications, providing a clear, verifiable standard for drain trap seal devices in food-environment construction documents. The certification eliminates questions about material suitability during submittal review. Third-party food safety audit programs such as SQF, BRC, and FSSC 22000 evaluate the suitability of equipment and materials used in food environments, and NSF/ANSI 2 certification provides the documentation that auditors accept as evidence of food equipment material safety compliance.

Certificate Download

NSF/ANSI 2 Certificate and Listing

Download the official NSF International certificate and listing for Green Drain. This document covers all 8 models and includes both company and manufacturing facility certification details.

  • NSF/ANSI 2 certificate (C0571796-01)
  • Manufacturing facility certification (C0571797-01)
  • Official NSF listing (recorded April 2, 2024)
  • All 8 models: GD1.25 through GD6

Frequently asked questions.

What is the difference between NSF/ANSI 2 and NSF/ANSI 61?

NSF/ANSI 2 is the standard for food equipment -- materials, design, fabrication, and performance of equipment used in food handling environments. NSF/ANSI 61 is the standard for drinking water system components. They address different applications. Green Drain is certified under NSF/ANSI 2 because it is classified as a food equipment accessory (waterless trap seal for floor drains in food environments), not a drinking water component.

Are all Green Drain models NSF/ANSI 2 certified?

Yes. All 8 Green Drain models are covered under the NSF/ANSI 2 certification: GD1.25, GD15, GD2, GD3, GD35, GD4, GD5, and GD6. The certification applies to the full product line, not just selected models. Each model is listed as a "Waterless Trap Seal for Floor Drain" in the NSF database.

Does NSF/ANSI 2 certification mean Green Drain is a food contact surface?

No. NSF/ANSI 2 covers food equipment broadly, including equipment that is used in food environments but may not directly contact food during processing. Green Drain is classified as a floor drain trap seal that operates in splash or spill zone areas. The certification confirms that the materials are safe for use in food environments and meet cleanability and sanitation requirements, even though the device is not in the direct food product stream.

Will health inspectors accept NSF/ANSI 2 certification for floor drain devices?

Yes. NSF/ANSI 2 is one of the most widely recognized food equipment standards among health departments and food safety auditors in North America. The NSF mark on food equipment is specifically what many health inspectors look for during kitchen inspections. Green Drain's NSF certification provides documentation that the drain trap seal meets food equipment material safety requirements.

How does NSF/ANSI 2 relate to HACCP International certification?

NSF/ANSI 2 certifies the product as food equipment (materials, construction, cleanability) and is the primary food equipment standard in North America. HACCP International certifies the product as suitable for use in facilities operating HACCP-based food safety programs and has global scope. Together, they provide comprehensive food environment compliance: NSF confirms material safety, and HACCP International confirms food safety program compatibility. Green Drain holds both certifications.

Need the NSF certificate for your project?

Download the NSF/ANSI 2 certificate directly, or contact us for submittals, specification language, or project-specific technical support.