Wavin Hep₂O - Key Push-Fit Pipe Fittings

Hep₂O Key includes unique features for quick and easy installation with a secure fitting. It is the only push-fit plumbing system with joint recognition, secure demounting and a 50 year guarantee.

Key Features

Wavin 50 Year Guarantee Image for Hep2O push-fit plumbing products
50-Year Guarantee
Hep₂O key system comes with a 50-year guarantee against defect in materials or manufacturing.
Secure Reliable Connection
Get a secure reliable connection every time thanks to Wavin’s In4Sure joint recognition.
Hep Key plus group 2_L
Tamper-proof but Demountable
Fittings can be easily demounted with the HepKey preventing tampering or accidental demounting
Images used in the Tigris Technical Handbook (2025 version)
Versatility
Hep₂O Key is compatible with traditional copper pipe and the Wavin Tigris K5 press-fit system.
Wavin Hep2O Original Push-fit Keyless showing the range of hep2o sizes and shapes

Why choose the Wavin Hep₂O Push-Fit pipe system?

Hep₂O Key is Wavin's original plastic push-fit system for hot and cold and central heating systems in both domestic and commercial projects. It is designed for high performance, reliability and easy installation with a 50-year guarantee for extra peace of mind. Hep₂O Key fittings give secure connections first time, every time with its unique In4sure joint recognition. The Hep₂O Key system is tamper resistant but can be easily be demounted when needed with a HepKey.

Hep2O and Copper

When compared to copper, the Hep₂O Key system:

  • Can be installed without a hotworks permit
  • Will not corrode no matter how soft or acidic the water is
  • Has no scrap value so has less chance of being stolen
  • Is cooler to the touch with less heat loss
  • Has less chance of a frost burst if pipe is frozen
  • Quiet in operation with no water hammering
  • Does not require painting
  • Ideal for first fix of radiators from behind stud walls

For maximum versatility Hep₂O Key is compatible with traditional copper pipe and the Wavin Tigris K5 press-fit system.

Why use Wavin Hep₂O for Larger Residential or Commercial Projects?

Innovative High Performance Products
A full range of Innovative high performance products that are designed to work together.
Technical Support
Hands on technical support from initial design and specification through to installation ensuring projects are delivered efficiently, compliantly and with confidence.
100% Accurate BIM Packages
Enabling architects, consultants and design teams to integrate reliable product data into project models, improving coordination, reducing design risks and supporting efficient project delivery.
EPDs and Certification Documentation
Providing transparent sustainability data to support environmental assessments, compliance requirements and green building accreditation schemes.
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We're looking for honest feedback from installers on what really matters when choosing products for the jobs you do every day. What do you like, what can we do better, and your thoughts on the latest products.
The survey takes around 8 minutes to complete and your input will help shape future products.

As a thank you, everyone who completes the survey by 30th September 2026 will be entered into a draw to win a 100.00 Amazon voucher, plus there are 10 Hep2o goody bags to be won.

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