--- product_id: 144417138 title: "Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp" brand: "twyford" price: "$45.93" currency: USD in_stock: true category: "Twyford" url: https://www.desertcart.ec/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp store_origin: EC region: Ecuador --- # Smooth push button action Dual flush efficiency Lightweight 20g design Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp **Brand:** twyford **Price:** $45.93 **Availability:** βœ… In Stock ## Summary > 🚽 Flush smarter, not harder β€” upgrade your bathroom game! ## Quick Answers - **What is this?** Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp by twyford - **How much does it cost?** $45.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp) ## Best For - twyford enthusiasts ## Why This Product - Trusted twyford brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Eco-Smart Dual Flush:** Save water effortlessly with two flush options tailored for efficiency and sustainability. - β€’ **Trusted Twyford Quality:** Join thousands of satisfied users with a 4.6-star rated plumbing essential. - β€’ **Ultra-Lightweight Build:** At just 20 grams, installation is a breeze without compromising durability. - β€’ **Compact & Discreet Design:** Fits perfectly in modern bathrooms, blending functionality with minimalist style. - β€’ **Seamless Push Button Control:** Experience a tactile, reliable flush with a sleek, easy-to-press button assembly. ## Overview The Twyford Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) by Siamp is a lightweight, durable plumbing fixture designed for efficient water use. Featuring a dual flush system and smooth push button operation, it offers a reliable and eco-friendly upgrade for modern bathrooms. Highly rated by thousands, it combines compact design with trusted Twyford quality. ## Description Shop Twyford Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp. Free delivery on eligible orders of Β£20 or more. ## Features - Product Type: PLUMBING FIXTURE - Twyford Optima49 Push Button Cistern - and Twyford ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07V57MBYL | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 11,872 in DIY & Tools ( See Top 100 in DIY & Tools ) 35 in Toilet Parts | | Customer Reviews | 4.6 4.6 out of 5 stars (3,240) | | Date First Available | 4 Feb. 2019 | | Guaranteed software updates until | unknown | | Item Weight | 20 g | | Manufacturer | Twyford | | Manufacturer reference | Organizer | | Package Dimensions | 14.7 x 5.6 x 4.6 cm; 20 g | | Part Number | Organizer | ## Images ![Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp - Image 1](https://m.media-amazon.com/images/I/31Eh2YbYTdL.jpg) ![Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp - Image 2](https://m.media-amazon.com/images/I/415HeCPdHTL.jpg) ![Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp - Image 3](https://m.media-amazon.com/images/I/71DeGzFS+pL.jpg) ## Questions & Answers **Q: What are the measurements ? Diameter of silver thread and cistern hole required.** A: 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. **Q: How to fit** A: 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. **Q: Is this a universal fitting as my toilet is a vitra toilet the measurment seem the same and the picture looks the same** A: It is universal. It fit mine OK. Just screws in **Q: Is this made of metal or plastic?** A: Plastic. It’s pretty robust though. ## Frequently Bought Together - Twyford Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp - Pack of 3 Replacement Rubber Ball Valve Washers - Fits All Siamp Fill Valves - SIAMP 99B Bottom Entry Inlet Float Valve 1/2 inch 15mm Plastic 30996007, White --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp](https://www.desertcart.ec/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-09-26*