--- product_id: 22681710 title: "Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734" brand: "flushmate" price: "R2067" currency: ZAR in_stock: true category: "Flushmate" url: https://www.desertcart.co.za/products/22681710-flushmate-c-100501-kit-flush-valve-cartridge-for-503h-gray store_origin: ZA region: South Africa --- # 1.28 GPF water efficiency Pressure-assist flush power Complete replacement kit Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 **Brand:** flushmate **Price:** R2067 **Availability:** βœ… In Stock ## Summary > 🚽 Upgrade your flush game β€” efficiency meets power in one sleek kit! ## Quick Answers - **What is this?** Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 by flushmate - **How much does it cost?** R2067 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/22681710-flushmate-c-100501-kit-flush-valve-cartridge-for-503h-gray) ## Best For - flushmate enthusiasts ## Why This Product - Trusted flushmate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Easy DIY Installation:** Designed for quick setup with basic tools or optional Flushmate wrenches, empowering you to maintain your system effortlessly. - β€’ **All-in-One Replacement Kit:** Includes flush valve cartridge, duckbill valve, and filter screen for a seamless, hassle-free installation experience. - β€’ **Fix Leaks & Restore Efficiency:** Eliminates common issues like continuous water flow and leaks, bringing your Flushmate system back to peak performance. - β€’ **Consistent High-Performance Flush:** Engineered to deliver a powerful, regulated 1.28 gallons per flush for optimal water efficiency without sacrificing performance. - β€’ **Durable Corrosion-Resistant Build:** Crafted with premium materials to withstand pressure-assisted systems, ensuring long-lasting reliability and fewer replacements. ## Overview The Flushmate C-100501-KIT is an OEM replacement flush valve cartridge designed for 503H pressure-assist toilet systems. It delivers a consistent 1.28 gallons per flush with corrosion-resistant materials for durability. The kit includes a duckbill valve and filter screen, ensuring a complete, easy-to-install solution that fixes leaks and restores optimal flushing performance. Backed by a one-year warranty and US-based support, it’s trusted by professionals and homeowners alike for reliable, water-efficient operation. ## Description desertcart.com: Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 : Tools & Home Improvement ## Features - REPLACEMENT FLUSH VALVE CARTRIDGE: This replacement flush valve cartridge kit is designed by Sloan Flushmate for every Flushmate system. The Cartridge delivers regulated gallons per flush for a consistent, high-performance flush. Built with corrosion-resistant materials and engineered for long-lasting durability, it ensures reliable performance and easy maintenance. - EFFICIENT WATER FLOW REGULATION: The Flushmate cartridge controls the release of pressurized water, ensuring a powerful flush and optimal performance for Flushmate pressure-assisted toilets. - COMPLETE KIT FOR EASY REPLACEMENT: The package contains the Flushmate brand valve cartridge, duckbill valve, and lower supply filter screen, providing everything needed for a full replacement and restoring flushing efficiency. - FIX LEAKS & RESTORE PERFORMANCE: Replacing the Flushmate cartridge resolves common problems such as continuous water flow and leakage, bringing your toilet back to peak flushing performance. - QUICK & EASY INSTALLATION: Installing the Flushmate cartridge is simple and can be done with basic tools or by using the Flushmate cartridge wrench (ST100500) or 3-in-1 wrench (ST100100). Regular replacement and maintenance ensure long-term performance and efficiency of your Flushmate system. - OEM FLUSHMATE CARTRIDGE: This is an original equipment manufacturer (OEM) replacement cartridge, designed for use with 500, 501, 501A, 501B, 503, and 504 series Flushmate Tank systems assemblied in USA. - DURABLE & LONG-LASTING PERFORMANCE: Built to withstand the demands of pressure-assisted toilet systems, this Flushmate cartridge is made of high-quality materials to ensures reliable performance over time, reducing the need for frequent replacements. Trusted by professionals and homeowners. - INCLUDES DUCKBILL VALVE & FILTER SCREEN: The Flushmate cartridge assembly includes a duckbill replacement valve for the upper supply, a filter screen, and detailed instructions for installation and maintenance. - FLUSHMATE GENUINE PARTS: Our products perform at their best when maintained exclusively using Flushmate Genuine Parts. We offer the largest selection of best-in-class parts, manufactured and tested to Flushmate specifications, designed for the most reliable commercial restroom products. Assemblied in the USA. - ONE YEAR WARRANTY: The Flushmate Cartride is backed by a limited one-year warranty and US based product support from Flushmate, ensuring peace of mind and dependable performance for reliable use and long-term satisfaction. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CEICNR4 | | Best Sellers Rank | #9,403 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #236 in Toilet Replacement Parts | | Brand Name | Flushmate | | Customer Reviews | 4.3 4.3 out of 5 stars (11) | | Exterior Finish | Stainless Steel | | Included Components | Part | | Inlet Connection Type | Threaded | | Item Dimensions | 9.25 x 2.5 x 2.5 inches | | Manufacturer | Flushmate | | Manufacturer Part Number | 93300734 | | Model Number | C-100501-K | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 4 | | Number of Ports | 1 | | Outlet Connection Size | 2.5 inches | | Outlet Connection Type | NPT | | Set Name | Flushmate C-100501-KIT | | Size | 1.28 GPF | | Specification Met | ASME, CSA, NSF, EPA, WaterSense, ISO 9001, CE, ASSE | | Thread Size | 1/4" NPT | | Thread Type | NPT | | UPC | 064871420046 | | Unit Count | 1 Count | | Valve Type | Flush Valve | ## Product Details - **Brand:** Flushmate - **Exterior Finish:** Stainless Steel - **Inlet Connection Type:** Threaded - **Item dimensions L x W x H:** 9.25 x 2.5 x 2.5 inches - **Number of Packs:** 1 - **Number of Ports:** 1 - **Outlet Connection Size:** 2.5 inches - **Outlet Connection Type:** NPT - **Specification Met:** ASME, CSA, NSF, EPA, WaterSense, ISO 9001, CE, ASSE - **Unit Count:** 1 Count ## Images ![Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 - Image 1](https://m.media-amazon.com/images/I/41IHix-69ZL.jpg) ![Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 - Image 2](https://m.media-amazon.com/images/I/51-604CKQcL.jpg) ![Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 - Image 3](https://m.media-amazon.com/images/I/51q8yxPvzeL.jpg) ![Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 - Image 4](https://m.media-amazon.com/images/I/51OLC6LAP8L.jpg) ![Flushmate C-100501-KIT Flush Valve Cartridge for 503H, Gray, 1.28 GPF | Flushmate 503H Pressure Assist Systems, Duckbill Valve, Filter Screen, Lower Supply Filter, 1.28 GPF Systems, 93300734 - Image 5](https://m.media-amazon.com/images/I/51V9xvyeoyL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Flushmate Original Part C-100502-KIT Flushing Cartridge kit 504 series for M-102540-C K-3597 (includes Duckbill and inlet screen) - Moen T2812EP Rizon Eco-Performance Posi-Temp Shower Trim, Valve Required, 1.75 GPM Flow Rate, Chrome - GP876851 Mixer and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black --- ## 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.co.za/products/22681710-flushmate-c-100501-kit-flush-valve-cartridge-for-503h-gray](https://www.desertcart.co.za/products/22681710-flushmate-c-100501-kit-flush-valve-cartridge-for-503h-gray) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-17*