A supplier offers a carbon filter for glyphosate reduction. Before comparing the price, ask which cartridge the claim covers and where the supporting evidence can be checked. NSF’s new P549 protocol makes that conversation more specific.
On 14 October 2026, NSF announced Protocol 549, or P549, for independent verification of glyphosate reduction claims in water filtration products. For distributors and private-label buyers, the development offers a new reference point when reviewing a supplier’s documentation.
NSF says the protocol aligns with existing testing frameworks, including NSF/ANSI 53 and NSF/ANSI 58. Its announcement identifies activated carbon adsorption and reverse osmosis among the methods that can achieve glyphosate reduction. That does not establish the performance of every carbon cartridge or RO system.
A catalogue may tell you that a cartridge contains carbon, or that an assembly uses a membrane. Those details help identify the design. For a purchasing decision, the next step is to connect the proposed treatment claim to the supplied configuration.
Ask the supplier to identify the complete assembly, its cartridge and the document supporting the proposed claim. Keep those references together in the purchase specification. If a sample changes during development, ask whether the evidence still covers it. Similar photographs and matching connection sizes are not a reliable way to settle that question.
This is particularly useful when a product is sold with several cartridge options. A retailer should be able to tell which option its description covers, without asking the customer to work it out from a general family brochure.
NSF explains that standard numbers are not performance rankings. Certification to a standard also does not mean a product reduces every possible contaminant. Check the specific reduction claim and the exact product covered.
For this news item, glyphosate is the subject. Do not turn a glyphosate claim into a wider statement about all pesticides, PFAS, metals or microorganisms. Each additional statement needs its own relevant support. A short, accurate description is easier to use than a long list that mixes confirmed results with development targets.
Record the cartridge reference, the assembly it fits and the installation instructions. For a private-label order, make sure your internal reference can be traced back to the supplier’s technical documents. Customers can see a simple product name while the purchasing team retains the detailed record.
Request the applicable operating conditions and the maintenance instructions alongside the performance evidence. Note any limits in the supplied documents. A headline claim should not leave a customer guessing which water source, cartridge or operating arrangement it assumes.
Save the dated documents used to approve the listing. Agree who will answer technical questions and how replacement elements will be identified. That small administrative step makes later enquiries easier, especially when a distributor carries several visually similar filters.
The CDC’s filter-selection guidance recommends choosing treatment for the germs or chemicals of concern. It also cautions that clear appearance and pleasant taste do not establish water safety.
For buyers in Europe, the Americas and Australia, the practical starting point is the intended water source and the customer’s stated treatment need. A newly launched protocol can help structure an evidence request. It does not, by itself, demonstrate that a particular product is suitable for every market or application.
When exploring Lijetwater’s filtration products, begin with the application, target substances and cartridge format. For a wholesale enquiry, include the destination market, expected quantity and the documentation your team needs to assess the proposed configuration.
P549 is discussed here as an industry development; this article does not establish certification or glyphosate reduction performance for a Lijetwater product. Before approving a claim for your own listing, make sure the documents cover the configuration you plan to sell.
