What are the measurements ? Diameter of silver thread and cistern hole required.

Cistern Hole = 27.5mm min / 46mm max (Probably designed for 30mm) Silver thread = about 15mm OD 13mm ID (i.e. a thread depth of about 1mm) Overall height including white plunger just over 90mm Thread of white plunger 8mm White plunger protrudes minimum 35mm and when pushed 46mm Hope that helps.

I bought this as a replacement for the exact same one where the top of the button had popped off revealing the spring. Fitting was easy as it was a like for like replacement. The broken button unscrewed and this one screwed in to the same casing.

Is this a universal fitting as my toilet is a vitra toilet the measurment seem the same and the picture looks the same

It is universal. It fit mine OK. Just screws in

Is this made of metal or plastic?

Plastic. It’s pretty robust though.

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🚽 Flush smarter, not harder — upgrade your bathroom game!

EASY INSTALLATION - Designed for quick, hassle-free replacement or upgrade.
ECO SMART DUAL FLUSH - Save water effortlessly with two flush options tailored for efficiency.
SPACE SAVVY COMPACTNESS - Lightweight and compact design fits perfectly in any bathroom setup.
TRUSTED TWYFORD QUALITY - Backed by a renowned brand known for durable plumbing fixtures.
SLEEK PUSH BUTTON CONTROL - Experience seamless operation with a responsive, modern push button.

The Twyford Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) by Siamp is a lightweight, compact plumbing fixture designed for efficient water use. Featuring a dual flush system and smooth push button operation, it offers an eco-friendly upgrade with trusted Twyford durability and easy installation.

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Manufacturer	Twyford
Part Number	Organizer
Package Dimensions	8.5 x 6.2 x 4.9 cm; 40 g
Manufacturer reference	Organizer
Batteries included?	No
Batteries Required?	No
Item Weight	40 g

TwyfordOptima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp

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