A genuine Thetford OEM orange vent button designed for C250 and C260 cassette toilets. This vent button allows air to enter the waste-holding tank during emptying, ensuring a smooth, splash-free pour. If your existing vent button is missing, stuck, or no longer releasing pressure properly, this replacement restores clean and easy tank emptying.

Part Number: 0752492

Colour: Orange

Material: ABS plastic with integrated spring and seal

Function: Tank pressure vent release button

1 × Orange vent button assembly

Compatability: 

• Fits Thetford C250 and C260 cassette toilets

• Suitable for both manual and electric flush versions

• Mounts directly on the waste-holding tank

Frequently Asked Questions 

Q: What is the purpose of this button?
The vent button releases internal air pressure from the waste-holding tank while you empty it. Pressing it allows the waste to flow out smoothly and prevents splashing or gurgling.

Q: Can I install this myself?
Yes ,  installation is simple and tool-free:

1. Remove the old button assembly from the vent opening.

2. Clean the vent area of any residue.

3. Push the new button firmly into place until it clicks.

Q: Does this include the spring and seal?
Yes ,  it’s a complete vent button assembly, ready to install.