--- product_id: 152011416 title: "A. O. Smith 4.5\"x10\" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP" brand: "a. o. smith" price: "HK$508" currency: HKD in_stock: true reviews_count: 8 category: "A. O. Smith" url: https://www.desertcart.hk/products/152011416-a-o-smith-4-5x10-20-micron-universal-sediment-filter store_origin: HK region: Hong Kong --- # 3-month easy replacement 20-micron sediment filtration 4.5" x 10" universal fit A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP **Brand:** a. o. smith **Price:** HK$508 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your home’s water game with crystal-clear confidence! ## Quick Answers - **What is this?** A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP by a. o. smith - **How much does it cost?** HK$508 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/152011416-a-o-smith-4-5x10-20-micron-universal-sediment-filter) ## Best For - a. o. smith enthusiasts ## Why This Product - Trusted a. o. smith brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Certified Quality:** IAPMO tested & NSF/ANSI 42 certified for trusted contaminant reduction. - • **Precision Filtration:** 20-micron filter traps sediment invisible to the naked eye, ensuring crystal-clear water. - • **Effortless Maintenance:** No plumber needed—replace every 3 months to keep your whole house system running flawlessly. - • **Universal Compatibility:** Seamlessly fits A. O. Smith AO-WH-PREL & top brands for hassle-free upgrades. - • **Built for Busy Households:** Large 4.5" diameter filter designed to support families of 4+ with consistent performance. ## Overview The A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter is a certified, high-capacity replacement cartridge designed for whole house filtration systems. It effectively reduces sediment smaller than the human eye can see, fits multiple popular models, and requires simple, quarterly replacement—perfect for busy households seeking reliable water purity and appliance longevity. ## Description desertcart.com: A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP | NSF-Certified | For AO-WH-PREL Whole House Filtration System | Protect Appliances, Reduces Sendiment | 3-Month Filter : Tools & Home Improvement Review: Filter - This goes with our whole house filter system. Does a great job, well priced. Review: Water Filter - We have a well for our water and this was connected to filter water for our whole house. We really love this product. We have been subscribing for a while now and have no complaints. We change filters about every 3 months. It has always arrived in perfect condition and price has been good. ## Features - Universal 4.5-in replacement filter fits A. O. Smith whole house system AO-WH-PREL. Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance. - Longer lasting appliances - whole house filter system designed to reduce sediment from every tap. - IAPMO tested and certified to NSF/ANSI standard 42 for materials. 20 micron filtration - reduces sediment smaller than the human eye can see. - Replacements made easy - no plumber necessary. Replace filter every 3 months. Large capacity (4.5") filter is perfect for household sizes 4 or more people. - Includes one replacement filter. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07R3G84YK | | Best Sellers Rank | #5,949 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Whole House Water Treatment Systems | | Brand | A. O. Smith | | Brand Name | A. O. Smith | | Compatible Water Purifier Models | A.O. Smith AO-WH-PREL, Culligan WH-HD200-C, GE GNWH38S, GE GXWH35F, GE GXWH40L | | Customer Reviews | 4.8 out of 5 stars 596 Reviews | | External Testing Certification | NSF 42 - Reduces aesthetic impurities | | Included Components | 4.5"x10" 20-Micron Sediment Filter | | Item Dimensions D x W x H | 4.5"D x 4.5"W x 10"H | | Manufacturer | AO Smith | | Manufacturer Part Number | RE301 | | Material | Polypropylene (PP) | | Material Type | Polypropylene (PP) | | Model Number | AO-WH-PREL-RP | | Number of Items | 1 | | Number of Packs | 1 | | Product Benefits | Reduces Sediment, Reduces Turbidity | | Product Dimensions | 4.5"D x 4.5"W x 10"H | | Set Name | 20-Micron Sediment | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 0.25 Kilograms - **Material:** Polycarbonate (PC) - **Product Benefits:** Reduces Sediment - **Product Dimensions:** 4.5"D x 10"W x 20"H ## Images ![A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP - Image 1](https://m.media-amazon.com/images/I/71dfulaKQ0L.jpg) ![A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP - Image 2](https://m.media-amazon.com/images/I/81Ynng-hoZL.jpg) ![A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP - Image 3](https://m.media-amazon.com/images/I/81CMQN9UhZL.jpg) ![A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP - Image 4](https://m.media-amazon.com/images/I/51ObOisFOeL.jpg) ![A. O. Smith 4.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PREL-RP - Image 5](https://m.media-amazon.com/images/I/31O9FkYP3UL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Does this work with the ao smith b filter?** A: Yes **Q: Is there an O ring for the universal filter** A: The O-Ring is part of the filter canister (AO-WH-PREL) and isn't included in this replacement filter cartridge itself. The O-Ring is item AO-WH-LG-OR https://www.amazon.com/AO-Smith-AO-WH-LG-Filter-Ring/dp/B07ZG3BD5Y/ref=sr_1_3?crid=3QFHWEMFX2C5B&dchild=1&keywords=ao-wh-lg-or&qid=1632321087&sprefix=ao-wh-%2Caps%2C164&sr=8-3 **Q: What is the flow rate?** A: Hello, Thank you for your question! The sediment filter replacement has a 4 GPM flow rate. If you have any questions or concerns, you may also contact us directly at 877.333.7108 Monday through Friday from 8 am to 10 pm EST, and Saturday to Sunday from 9 am to 6 pm EST. -AO Smith Support **Q: how many come for 19.99?** A: Only one comes in a pack. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Filter *by L***E on April 22, 2026* This goes with our whole house filter system. Does a great job, well priced. ### ⭐⭐⭐⭐⭐ Water Filter *by J***R on January 13, 2026* We have a well for our water and this was connected to filter water for our whole house. We really love this product. We have been subscribing for a while now and have no complaints. We change filters about every 3 months. It has always arrived in perfect condition and price has been good. ### ⭐⭐⭐⭐⭐ Timely filtration *by B***0 on May 9, 2026* The filter works like a charm, and I like that it promptly comes every three months. ## Frequently Bought Together - AO Smith 4.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RP - AO Smith 4.5"x10" 5 Micron Carbon Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RCP - AO Smith AO-WH-LG-OR - Whole House Water Filter O-Ring 5.48 Inch 14 Cm Diameter Fits Most Housings Made for 4.5 Inch Filters --- ## 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.hk/products/152011416-a-o-smith-4-5x10-20-micron-universal-sediment-filter](https://www.desertcart.hk/products/152011416-a-o-smith-4-5x10-20-micron-universal-sediment-filter) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-09-12*