--- product_id: 144417138 title: "Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp" brand: "twyford" price: "2280973₫" currency: VND in_stock: true reviews_count: 8 category: "Twyford" url: https://www.desertcart.vn/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp store_origin: VN region: Vietnam --- # Easy, no-adjustment installation Dual flush tech for water savings Durable, sturdy build quality Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp **Brand:** twyford **Price:** 2280973₫ **Availability:** ✅ In Stock ## Summary > 🚿 Upgrade your flush game—efficiency meets style! ## Quick Answers - **What is this?** Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp by twyford - **How much does it cost?** 2280973₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 - • **Eco-Smart Dual Flush:** Save water and cut bills with every flush. - • **Reliable Performance:** Smooth, responsive push button for flawless operation. - • **Premium Build Quality:** Engineered by Twyford for long-lasting durability. - • **Effortless Installation:** Fits perfectly with zero hassle—get it done in minutes! - • **Seamless Bathroom Upgrade:** Modern design that blends perfectly with your space. ## Overview The Twyford Optima49 Dual Flush Toilet Cistern Push Button Assembly is a precision-engineered replacement part designed for easy installation and reliable performance. Featuring a water-saving dual flush mechanism and robust build quality, it ensures smooth operation and durability, making it an ideal upgrade for modern, eco-conscious bathrooms. ## Description Twyford Optima49 Push Button Cistern Review: Perfect Replacement — Fits Like a Dream and Easy to Install! - My original Twyford Optima49 dual flush push button broke, and this replacement was exactly what I needed. It fits perfectly with no adjustments required, which made the installation incredibly easy and quick. The build quality feels sturdy and reliable, just like the original part. Since fitting it, the flush works smoothly with the dual flush options operating properly. If you need a replacement push-button assembly for this model, this one is spot on and hassle-free. A great product that saved me time and money on repairs. Review: Excellent Quality and Efficient - The Twyford Optima49 Dual Flush Toilet Cistern is a fantastic product that combines quality, efficiency, and smart design. Installation was straightforward, and the build feels solid and durable, just what you would expect from a trusted brand like Twyford. The dual flush system works perfectly, offering a strong, reliable flush while helping to save water — a big plus for both the environment and the water bill! The push mechanism is smooth and responsive, and the overall design fits neatly and looks great with modern bathroom setups. Overall, this is a top-quality cistern that performs exactly as promised. I’m very happy with it and would definitely recommend it to anyone looking for a dependable, water-efficient toilet upgrade! ## Features - Product Type: PLUMBING FIXTURE - Twyford Optima49 Push Button Cistern - and Twyford ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07V57MBYL | | Batteries included? | No | | Customer Reviews | 4.6 4.6 out of 5 stars (3,222) | | Date First Available | 4 Feb. 2019 | | Item Weight | 20 g | | Manufacturer | Twyford | | Manufacturer reference | Organizer | | Package Dimensions | 8 x 4.6 x 4.5 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) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect Replacement — Fits Like a Dream and Easy to Install! *by P***L on 14 October 2025* My original Twyford Optima49 dual flush push button broke, and this replacement was exactly what I needed. It fits perfectly with no adjustments required, which made the installation incredibly easy and quick. The build quality feels sturdy and reliable, just like the original part. Since fitting it, the flush works smoothly with the dual flush options operating properly. If you need a replacement push-button assembly for this model, this one is spot on and hassle-free. A great product that saved me time and money on repairs. ### ⭐⭐⭐⭐⭐ Excellent Quality and Efficient *by E***S on 26 April 2025* The Twyford Optima49 Dual Flush Toilet Cistern is a fantastic product that combines quality, efficiency, and smart design. Installation was straightforward, and the build feels solid and durable, just what you would expect from a trusted brand like Twyford. The dual flush system works perfectly, offering a strong, reliable flush while helping to save water — a big plus for both the environment and the water bill! The push mechanism is smooth and responsive, and the overall design fits neatly and looks great with modern bathroom setups. Overall, this is a top-quality cistern that performs exactly as promised. I’m very happy with it and would definitely recommend it to anyone looking for a dependable, water-efficient toilet upgrade! ### ⭐⭐⭐⭐ Decent flush button but may need replacing yearly *by D***E on 30 November 2025* This button is true to image and screws in easily to my toilet cistern. It fits well and does the job. This is the second one I have purchased however as the first did eventually come apart approximately a year after installing so be prepared that you might need to repurchase. It is 14.15 at the time of purchase so for this low price I don't mind. ## 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? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp](https://www.desertcart.vn/products/144417138-optima49-dual-flush-toilet-cistern-push-button-assembly-cf1003cp-siamp) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-26*