Tece Cistern Inlet Valve

One Valve, Three Major Brands: The TECE 9.820.353 is the official upgraded inlet valve for all TECE cisterns, but it is also the industry-standard replacement for discontinued European valves:

Grohe Dal: Replaces the old Grohe Dal valves (identifiable by the large red clip and polystyrene foam float).
Friatec: Replaces older Friatec in-wall inlet valves.

The Connection: Features a standard 10mm (3/8″) thread for a seamless fit into your existing flexible hose.
The inlet valve has also changed colour too red and black which is pictured.

Universal European In-Wall Inlet Valve If you have an older in-wall cistern from Grohe or Friatec, finding a direct “like-for-like” replacement can be nearly impossible. The TECE 9.820.353 has been engineered to fill this gap.

Why this is the best choice for older systems:

Quiet Fill: This updated model is significantly quieter than the original Grohe Dal valves.
Compact Design: Its slim profile ensures it fits into the narrow access tunnels of older in-wall frames.
All-in-One Instructions: Every box includes a specific instruction set showing you exactly how to adapt this valve to your Grohe or Friatec cistern.
Standard Thread: The 3/8″ (10mm) brass thread ensures you don’t need to hunt for specialized adapters.

Do you have an old Grohe Dal? If you open your flush plate and see a valve with a bright red plastic clip holding it in place and a square foam block as a float, your valve is no longer manufactured. The TECE 9.820.353 is the official modern replacement recommended by specialists to get your cistern running again.

Q: Will this fit my Grohe Dal cistern?
A: Yes! This is our most popular replacement for the old red-clip Grohe Dal valves. It is much more reliable and fits perfectly onto the existing 3/8″ water connection. We suggest you also buy the correct flexible hose which is the 370mm Grohe Flexi is the mandatory partner for the repair.

Q: Does it come with the adapters for Friatec?
A: Yes, the box includes the necessary instructions and components to adapt the valve to Friatec systems.

Q: What is the thread size?
A: It features a 10mm (3/8″) thread, which is the standard for European in-wall plumbing.

Q: Is it better to replace the whole valve or just the seal?
A: For Grohe Dal and Friatec valves, the plastic often becomes brittle over 15+ years. We strongly recommend replacing the entire valve with this TECE unit for long-term peace of mind.