WaterMark Certification Explained: Why It Matters When Choosing Stainless Steel Press Fittings
When specifying plumbing products for commercial or industrial projects, compliance isn't optional. Whether you're installing a potable water system in a commercial building or specifying press fittings for an industrial application, using certified products helps ensure safety, quality and regulatory compliance.
That's where WaterMark certification comes in.
If you've ever wondered what the WaterMark logo means or why plumbers insist on using WaterMark-approved products, this guide explains everything you need to know.
What Is WaterMark Certification?
WaterMark™ is Australia's mandatory national certification scheme for plumbing and drainage products.
Managed by the Australian Building Codes Board (ABCB), the scheme ensures products used in Australian plumbing installations are independently tested and certified as fit for purpose before they can legally be installed where WaterMark approval is required.
The WaterMark logo provides confidence that a product has been assessed against relevant Australian Standards and complies with the requirements of the Plumbing Code of Australia (PCA).
For plumbers, engineers, builders and specifiers, WaterMark certification is an easy way to identify products that meet Australia's strict plumbing regulations.

Why Is WaterMark Important?
Plumbing products operate under pressure and are often installed inside walls, ceilings and underground infrastructure. A product failure can result in:
- Water leaks
- Property damage
- Contaminated drinking water
- Costly repairs
- Project delays
- Non-compliant installations
WaterMark certification helps minimise these risks by ensuring products have been independently assessed for performance, safety and durability.
For installers, it also provides confidence that the products they're using comply with Australian regulations.
Which Plumbing Products Require WaterMark?
Not every plumbing product requires certification, but many pressure-related products do.
Examples include:
- Stainless steel press fittings
- Pressure pipe systems
- Hot and cold water pipe fittings
- Valves
- Water heaters
- Tapware
- Sanitary drainage fittings
- Backflow prevention devices
- Water filtration products
Products that form part of a drinking water or pressure plumbing system will often require WaterMark approval before they can be legally installed in Australia.
How Does WaterMark Certification Work?
WaterMark certification is carried out by accredited WaterMark Conformity Assessment Bodies (WMCABs).
Before a product receives certification, it typically undergoes:
- Independent laboratory testing
- Design evaluation
- Manufacturing quality assessment
- Ongoing compliance audits (for higher-risk products)
- Product identification and traceability checks
Only after successfully meeting these requirements can the manufacturer apply the WaterMark logo to the product.
This independent verification provides assurance that certified products continue to meet Australian performance requirements throughout their certification period.
WaterMark Level 1 vs Level 2
The WaterMark scheme uses two certification levels based on product risk.
Level 1 Certification
Level 1 applies to higher-risk plumbing products, including many pressure pipe systems and fittings.
Products undergo:
- Independent testing
- Design verification
- Manufacturing quality system audits
- Ongoing surveillance
- Periodic recertification
This is the highest level of certification under the WaterMark scheme.
Level 2 Certification
Level 2 generally applies to lower-risk plumbing products.
These products still undergo testing and design assessment but typically do not require ongoing manufacturing audits.
WaterMark and Stainless Steel Press Fittings
For installers using stainless steel press-fit systems, WaterMark certification provides assurance that fittings intended for potable water applications have been assessed for compliance with Australian plumbing requirements.
At Europress, our stainless steel press fittings are designed to meet the performance, durability and quality expectations demanded across commercial and industrial plumbing projects.
Using WaterMark-certified press fittings helps contractors:
- Meet Plumbing Code of Australia requirements
- Simplify project approvals
- Specify trusted, compliant products
- Reduce installation risk
- Provide confidence for building owners and project managers
Why WaterMark Matters for Commercial Projects
Commercial plumbing projects often involve multiple stakeholders, including engineers, hydraulic consultants, certifiers and local authorities.
Specifying WaterMark-certified products helps streamline approvals because compliance has already been independently verified.
Whether you're installing pipework in:
WaterMark certification provides confidence that the products meet recognised Australian standards.
WaterMark and Lead-Free Compliance
Australia has introduced stricter requirements for plumbing products used in drinking water systems.
From 1 May 2026, many plumbing products intended for potable water applications must comply with a maximum lead content of 0.25%.
These updated requirements further improve drinking water safety and form part of Australia's ongoing commitment to public health.
When specifying products for potable water systems, it's important to ensure they meet both WaterMark certification requirements and any applicable lead-free standards.
Why Choose Europress WaterMark-Certified Press Fittings?
Europress stainless steel press fittings are designed to help contractors complete projects faster while maintaining compliance with Australian plumbing requirements.
Key benefits include:
- WaterMark-certified products for approved applications
- Available in premium 316L and 304 stainless steel
- Flame-free press-fit installation
- Fast installation compared with traditional welding
- Corrosion-resistant construction
- Reliable, leak-tight mechanical joints
- Suitable for commercial and industrial plumbing systems
- Compatible with M-profile press tools
Combined with Europress stainless steel pipe systems, installers can achieve high-quality, professional installations with reduced labour time and improved on-site safety.
Choosing Compliant Plumbing Products
When selecting stainless steel press fittings, it's important to consider more than just price.
Always check:
- WaterMark certification
- Material grade (304 or 316L)
- Pressure rating
- Seal material compatibility
- Application suitability
- Compliance with Australian Standards
- Manufacturer support and documentation
Choosing certified products from trusted suppliers helps reduce project risk while delivering reliable long-term performance.
Why Plumbers Trust Europress
Europress supplies high-quality stainless steel press-fit systems trusted by plumbers, hydraulic contractors and industrial installers across Australia.
With a comprehensive range of press fittings, valves, pipe systems and installation tools, Europress provides solutions designed for:
- Commercial plumbing
- Potable water systems
- HVAC services
- Industrial process piping
- Compressed air systems
- Gas installations (approved products)
- Food and beverage facilities
Our team provides technical advice to help contractors specify compliant, efficient and reliable press-fit solutions for every project.
Frequently Asked Questions
What is WaterMark certification?
WaterMark is Australia's mandatory certification scheme for specified plumbing and drainage products. It confirms that products have been independently tested and approved for use in Australian plumbing installations where certification is required.
Do stainless steel press fittings need WaterMark certification?
Press fittings used in potable water and other regulated plumbing applications generally require WaterMark certification to comply with Australian plumbing regulations.
Who manages the WaterMark scheme?
The WaterMark Certification Scheme is administered by the Australian Building Codes Board (ABCB), with certification carried out by accredited WaterMark Conformity Assessment Bodies.
Why should plumbers choose WaterMark-certified products?
WaterMark-certified products help ensure compliance with Australian Standards, reduce installation risk, simplify project approvals and provide confidence that products are fit for purpose.
Are Europress stainless steel press fittings WaterMark certified?
Europress offers WaterMark-certified stainless steel press fittings for approved applications, helping plumbers and specifiers meet Australian compliance requirements while benefiting from fast, reliable press-fit installation.

