--- product_id: 48534967 title: "Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear" brand: "geberit" price: "€ 7.56" currency: EUR in_stock: true reviews_count: 13 category: "Geberit" url: https://www.desertcart.hr/products/48534967-geberit-816-418-00-1-flush-valve-base-sealing-washer store_origin: HR region: Croatia --- # 10-year EU spare part availability Leak-proof rubber seal 62mm precision fit Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear **Brand:** geberit **Price:** € 7.56 **Availability:** ✅ In Stock ## Summary > 🚽 Seal the deal with Geberit – no leaks, no stress, just flawless flushes! ## Quick Answers - **What is this?** Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear by geberit - **How much does it cost?** € 7.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48534967-geberit-816-418-00-1-flush-valve-base-sealing-washer) ## Best For - geberit enthusiasts ## Why This Product - Trusted geberit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Term Reliability:** Backed by a decade of EU spare part availability, future-proof your bathroom maintenance with confidence. - • **Effortless Installation:** Replace your worn washer in minutes without dismantling the entire flush valve mechanism—saving time and stress. - • **Precision Engineered Fit:** 62mm diameter ensures seamless compatibility with all Geberit flush valves for a hassle-free upgrade. - • **Ultimate Leak Protection:** Durable rubber material guarantees a watertight seal, eliminating annoying leaks and phantom flushes. - • **Silent Performance Upgrade:** Say goodbye to weird cistern noises and water wastage—experience a quiet, efficient flush every time. ## Overview The Geberit 816.418.00.1 Flush Valve Base Sealing Washer is a high-quality, clear rubber replacement part designed for all Geberit flush valves. Measuring 62mm in diameter, it provides a precise, leak-proof seal that prevents water wastage and noise. Easy to install without removing the flush mechanism, this washer is a trusted solution with a 10-year EU spare part availability, ensuring long-term reliability and peace of mind. ## Description Geberit flush valve won't seal properly and is constantly passing water into the toilet pan but there is no sign of an inlet valve failure, it could very well be that the base sealing washer need to be changed. Overtime as the flush valve is opened and closed, small imperfections tend to occur in the surface of the rubber washer causing the washer to be warped and not providing an adequate seal. Review: Easy to install, no more leak - Worked perfectly. My in wall toilet cistern had been leaking water into the pan slowly for a week or so. I was able to change the original rubber seal for this one without removing the mechanism from the cistern, just turning it upside down in place. Much easier then taking all the components out like the youtube videos had instructed. Worked instantly, no more leaking water. Review: Perfect fit - A tiny bit thinner than original one however fits perfect and quality feels like original one so no more leakage and weird sound from water cistern. ## Features - Suitability: Suitable for all Geberit flush valves - Contents Base sealing washer only. - Good quality product - Model number: 816.418.00.1 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004V7FOK4 | | Brand Name | Geberit | | Colour | Clear | | Compatible Groove Diameter | 5 Centimeters | | Customer Reviews | 4.5 out of 5 stars 3,754 Reviews | | EU Spare Part Availability Duration | 10 Years | | Exterior Finish | Rubber or Plastic | | Exterior finish | Rubber or Plastic | | Fastener Size | 62 mm | | Fastener Type | Sealing | | Fastener size | 62 mm | | Finish Types | Plain | | Global Trade Identification Number | 04025416069669, 08033146067868 | | Grade Rating | Standard | | Included Components | 1 x Geberit Replacement Flush Valve Base Sealing Washer 816.418.00.1 | | Item Diameter | 62 Millimetres | | Item Dimensions | 6.3 x 6.3 x 0.3 centimetres | | Item Type Name | Replacement Flush Valve Base Sealing Washer 816.418.00.1 | | Item Weight | 0.01 Kilograms | | Manufacturer | Geberit | | Manufacturer Part Number | 816.418.00.1 | | Material | Rubber | | Material Type | Rubber | | Metal | Stainless Steel | | Model Number | K11749 | | Number Of Items | 1 | | Number of Pieces | 1 | | Outside Diameter | 62 Millimetres | | Outside diameter | 62 Millimetres | | Product Warranty | Not applicable. | | Screw Head Style | Flat | | Size | 6.3 x 6.3 x 0.3cm (Single) | | Thread Size | 1/4-20 UN | | UPC | 791429795607 733353441540 | | Unit Count | 1.0 count | | Washer Type | Sealing | | Washer type | Sealing | ## Product Details - **Exterior finish:** Rubber or Plastic - **Fastener size:** 62 mm - **Material:** Rubber - **Outside diameter:** 62 Millimetres - **Washer type:** Sealing ## Images ![Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear - Image 1](https://m.media-amazon.com/images/I/41xuf7cFOdL.jpg) ![Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear - Image 2](https://m.media-amazon.com/images/I/41qudnzRfaL.jpg) ![Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear - Image 3](https://m.media-amazon.com/images/I/41nlr1ZBA3L.jpg) ![Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear - Image 4](https://m.media-amazon.com/images/I/11IGNebZn8L.jpg) ## Questions & Answers **Q: Our Geberit Flush sealing washer is 7cm diameter and the hole is 4cm across. Did this seal work for anyone with a larger original washer?** A: Hi, the one indicated is 6.5cm in diameter and just over 3.2cm the middle hole. Suggest you check the Geberit website to find your actual flushing mechanism which will have the breakdown of the parts **Q: Why a m being harrassed with items like this when i have no interest?** A: Does not work well goes wrong ! Lasted 2 years-replaced it all now would never buy again! **Q: Base seal washer 67mm outer 42mm inner 2 mm thick** A: Mine measures 61mm OD x 31mm ID x 3mm Thick **Q: Could you please let me know the sizes of the inner and outer diameters and, if possible, the thickness? Thank you.** A: Outer diameter: 63mm Inner diameter: 31mm Thickness: 2mm - HTH ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to install, no more leak *by L***R on 2 September 2025* Worked perfectly. My in wall toilet cistern had been leaking water into the pan slowly for a week or so. I was able to change the original rubber seal for this one without removing the mechanism from the cistern, just turning it upside down in place. Much easier then taking all the components out like the youtube videos had instructed. Worked instantly, no more leaking water. ### ⭐⭐⭐⭐⭐ Perfect fit *by G***. on 30 January 2026* A tiny bit thinner than original one however fits perfect and quality feels like original one so no more leakage and weird sound from water cistern. ### ⭐⭐⭐⭐ Exact fit for many types of Geberit Flush Valve - normally no tools required *by A***Y on 26 January 2024* After about 15 years, our cloakroom toilet cistern was leaking a little due to the flush washer having become swollen in places. It was easy to fix and apart from a screwdriver to turn off the water (at the service valve), no tools were needed. The main requirement is to check that the washer is the correct one. The steps are: (1) remove lid of cistern: some just lift off, I had to unscrew the button push (2) turn off water supply to cistern and flush to empty (3) remove flush mechanism: mine unclipped, some have to be turned anticlockwise (4) Pull seal to the side to remove - it is very soft (5) Replace with new seal and re-assemble parts, turn on water and test The old seal was blistered and as temporary fix, I pricked the many blisters - what looked like water came out - and made the seal flat again. ## Frequently Bought Together - Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear - Geberit 241.469.00.1 Toilets and Bidets - Geberit Connecting Hose for Concealed cisterns, 120 mm, 1 Piece, 240.921.00.1, Silver --- ## 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.hr/products/48534967-geberit-816-418-00-1-flush-valve-base-sealing-washer](https://www.desertcart.hr/products/48534967-geberit-816-418-00-1-flush-valve-base-sealing-washer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-07*