--- product_id: 382196489 title: "Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1)" brand: "waterdrop" price: "€ 155.40" currency: EUR in_stock: true category: "Waterdrop" url: https://www.desertcart.gr/products/382196489-waterdrop-ap431-water-filter-cartridge-replacement-for-aqua-pure-ap431 store_origin: GR region: Greece --- # 6-month extended lifespan 10 GPM fast flow rate BPA-free anti-burst housing Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1) **Brand:** waterdrop **Price:** € 155.40 **Availability:** ✅ In Stock ## Summary > 💧 Keep your water flowing smooth and your appliances running like new! ## Quick Answers - **What is this?** Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1) by waterdrop - **How much does it cost?** € 155.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/382196489-waterdrop-ap431-water-filter-cartridge-replacement-for-aqua-pure-ap431) ## Best For - waterdrop enthusiasts ## Why This Product - Trusted waterdrop brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Consistent High Flow:** Delivers a stable water flow up to 10 gallons per minute, meeting all your domestic water needs without compromise. - • **Leak-Proof Durability:** Crafted with food-grade BPA-free plastic, this cartridge fits perfectly and prevents leaks for worry-free use. - • **Seamless Compatibility:** Direct replacement for 3M Aqua-Pure AP430, AP430SS, SF18-S, and interchangeable with other leading models. - • **Long-Lasting Protection:** Replace every 6 months to maintain optimal filtration and extend the life of your water-using appliances. - • **Effortless Scale Defense:** Premium polyphosphates shield your appliances from corrosion and limescale buildup, ensuring peak performance. ## Overview The AP431 Water Filter Cartridge uses advanced polyphosphate technology to inhibit scale buildup, protecting your hot water appliances from corrosion and blockages. Designed with BPA-free, anti-burst housing, it ensures leak-free, safe water flow at up to 10 GPM. Compatible with multiple 3M Aqua-Pure models, this cartridge offers reliable performance for up to 6 months, extending the lifespan and efficiency of your water-using devices. ## Description With this scale inhibitor cartridge, your water pipes, dishwasher, water heater, washing machine, and other water-using appliances are protected from pipeline corrosion, blockage, and other anomalies caused by scaling. This way, they will work optimally for longer periods.The integrity of pipelines is threatened by rust and blockages caused by hard water. This, in turn, lessens the lifespan of water heaters and other appliances. The greater the amount of limescale, the less efficient your water heater becomes. ## Features - 【Protects your water-using appliances】: With the premium polyphosphates in this scale inhibitor cartridge, you can worry less about the accumulation of corrosion and limescale, which may block your pipelines. This efficient filter media will keep your water-using appliances—like dishwashers, heaters, etc.—working optimally and for the longest time possible. - 【Anti-burst properties】: The cartridge housing is made from food-grade BPA-free plastic and fits the original brand perfectly, without any leaks. With its state-of-the-art technology, the scale inhibitor cartridge ensures a safe water use experience. - 【Fast water flow】: With a continuous flow of filtered water at a stable pressure and a flow rate of up to 10 gpm, this scale inhibitor cartridge is designed to provide water for your domestic requirements. - 【Extended lifespan】: Enjoy clean water by replacing your cartridge every 6 months, which will vary based on water conditions. Throughout this time frame, you will get maximum performance. - 【Replacement models】: Replacement for 3M Aqua-Pure AP430, AP430SS, and SF18-S Scale Inhibition System. Interchangeable with 3M Aqua-Pure AP431, HF8-S, KleenWater KW431 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089W9TSJG | | Best Sellers Rank | #168,745 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #563 in Replacement Water Filters | | Brand Name | Waterdrop | | Compatible Water Purifier Models | 3M SF18-S | | Customer Reviews | 4.5 4.5 out of 5 stars (354) | | External Testing Certification | RoHS | | Item Dimensions D x W x H | 6.5D x 6.5W x 24H centimeters | | Item Weight | 1 Pounds | | Manufacturer | Waterdrop | | Manufacturer Part Number | WD-AP431 | | Material Type | Plastic | | Model Number | WD-W65 | | Number of Items | 1 | | Product Benefits | Prevent Scale Accumulation | | Set Name | Aqua-Pure AP431 | | UPC | 840814177495 | | Unit Count | 1.0 Count | ## Product Details - **External testing certification:** RoHS - **Item weight:** 1 Pounds - **Material:** Plastic - **Product benefits:** Prevent Scale Accumulation - **Product dimensions:** 6.5D x 6.5W x 24H centimeters ## Images ![Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/5140+mcg8XL.jpg) ## Frequently Bought Together - Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 - Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers - Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 3 --- ## 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.gr/products/382196489-waterdrop-ap431-water-filter-cartridge-replacement-for-aqua-pure-ap431](https://www.desertcart.gr/products/382196489-waterdrop-ap431-water-filter-cartridge-replacement-for-aqua-pure-ap431) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-16*