---
product_id: 254561740
title: "AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration"
brand: "ao smith"
price: "R$587"
currency: BRL
in_stock: true
reviews_count: 5
category: "Ao Smith"
url: https://www.desertcart.com.br/products/254561740-ao-smith-ao-wh-prel-rp-4-5-inch-sediment
store_origin: BR
region: Brazil
---

# Whole house sediment reduction 20 micron ultra-fine filtration Easy DIY replacement every 3 months AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration

**Brand:** ao smith
**Price:** R$587
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game—because every drop counts!

## Quick Answers

- **What is this?** AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration by ao smith
- **How much does it cost?** R$587 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/254561740-ao-smith-ao-wh-prel-rp-4-5-inch-sediment)

## Best For

- ao smith enthusiasts

## Why This Product

- Trusted ao smith brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Maintenance:** No plumber needed—swap out your filter in minutes and keep your system running flawlessly.
- • **Trusted Genuine Quality:** Certified AO Smith filter ensures optimal contaminant removal and system longevity.
- • **Built for Busy Households:** Large 4.5-inch filter capacity designed to support families of 4+ with consistent performance.
- • **Crystal Clear Water, Every Tap:** 20 micron filtration removes sediment invisible to the naked eye for pristine water throughout your home.
- • **Subscription-Ready Convenience:** Reliable replacement schedule every 3 months keeps your water fresh without the hassle.

## Overview

The AO Smith AO-WH-PREL-RP is a 4.5-inch sediment filter replacement featuring 20 micron filtration designed for whole house systems. Engineered for households of four or more, it reduces sediment invisible to the eye, extends appliance life, and offers easy DIY replacement every 3 months. Certified genuine AO Smith quality guarantees consistent contaminant removal and system performance.

## Description

AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration : desertcart.ae: Tools & Home Improvement

Review: 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.
Review: Price and saves my water!

## Features

- Filter for use with: Whole House Filter System with Timer (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.
- 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 |
| Brand | AO Smith |
| Customer Reviews | 4.8 4.8 out of 5 stars (561) |
| Date First Available | 21 June 2019 |
| Item Weight | 249 g |
| Material | Polycarbonate (PC) |
| Model Number | RE301 |
| Product Dimensions | 11.43 x 25.4 x 50.8 cm; 249 g |

## Product Details

- **Brand:** AO Smith
- **External testing certification:** NSF
- **Item weight:** 0.25 Kilograms
- **Material:** Polycarbonate (PC)
- **Product benefits:** Reduces Sediment

## Images

![AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration - Image 1](https://m.media-amazon.com/images/I/71dfulaKQ0L.jpg)
![AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration - Image 2](https://m.media-amazon.com/images/I/81Ynng-hoZL.jpg)
![AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration - Image 3](https://m.media-amazon.com/images/I/81CMQN9UhZL.jpg)
![AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration - Image 4](https://m.media-amazon.com/images/I/712sxIAyOZL.jpg)
![AO Smith AO-WH-PREL-RP - 4.5 Inch Sediment Filter Replacement - 20 Micron Filtration - Image 5](https://m.media-amazon.com/images/I/31O9FkYP3UL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by J***R on 13 January 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.

### ⭐⭐⭐⭐⭐ Review
*by D***I on 30 November 2025*

Price and saves my water!

### ⭐⭐⭐⭐⭐ Review
*by J***S on 5 September 2025*

Seems to work good for filtering small particles

## 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

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**Shop now:** [https://www.desertcart.com.br/products/254561740-ao-smith-ao-wh-prel-rp-4-5-inch-sediment](https://www.desertcart.com.br/products/254561740-ao-smith-ao-wh-prel-rp-4-5-inch-sediment)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-02*