Geberit Kappa Outlet Dual Flush Replacement Valve 240.638.00.1

Geberit Kappa Outlet Valve (240.638.00.1): The Professional Identification Guide

The Geberit 240.638.00.1 is the genuine replacement dual-flush outlet valve for the Kappa series under-counter concealed cisterns. Because Geberit valves can look similar, correct identification is critical to avoid project delays.

How to Identify Your Valve (The Sticker Test)

Don’t guess—check the tank. Reach inside the cistern; on the top left-hand side of the back wall, there is a identification sticker. This valve is the correct fit if your cistern number begins with:

• 110.206.00.1

• 224.368.00.1

• 111.262.00.1

Visual Key: This valve is easily identified by the dark grey clip that surrounds the middle of the valve body. This clip is essential as it secures the valve directly to the back wall of the cistern.

The Pneumatic Connection

The 240.638 is frequently part of a pneumatic (air-driven) setup. If you are replacing this valve, we highly recommend checking the Pneumatic Lifter (240.574.00.1) at the same time, as these components work in tandem to trigger the flush.

Important: Don’t Confuse with UP170

Before ordering, ensure you do not have the UP170 valve. Both the Kappa and the UP170 were commonly sold as pneumatic systems and can look similar at a glance. The “Sticker Test” mentioned above is the only 100% accurate way to confirm your model.

Technical Note on the Flexible Hose (240.817.00.1)

If you are also replacing the flexible water connector, the Kappa requires the 240.817.00.1.

• Version Update: Older hoses had a nut at both ends. The new universal system features a white end that plugs directly into the inlet valve after you remove the threaded section.

• Warning: Other Geberit hoses are not long enough to reach in the Kappa under-counter configuration.

Why Pros Choose Sydney Tap & Bathroomware

We know that a broken toilet is a priority one repair. We provide the speed and reliability that plumbers and homeowners need:

• Lightning Fast Handling: We maintain a less than 24-hour handling time on all in-stock Geberit spares.

• Track Record of Speed: 8/10 of our orders arrive either on time or earlier than estimated.

• Flexible Delivery: Choose from Australia-wide shipping or Express Pickup from our Mascot showroom for urgent jobs.

• Trade Reliability: We stock genuine Geberit parts, ensuring you don’t have to deal with the failures associated with generic “multi-fit” valves.