---
product_id: 189163553
title: "AO-WH-LG-OR Genuine Replacement | O-Ring | for 4.5\" Filters"
brand: "a. o. smith"
price: "€ 29.95"
currency: EUR
in_stock: true
category: "A. O. Smith"
url: https://www.desertcart.sk/products/189163553-ao-wh-lg-or-genuine-replacement-o-ring-for-4
store_origin: SK
region: Slovakia
---

# Ensures leak-proof water-tight seal Durable synthetic rubber material 5.48 inch diameter precision fit AO-WH-LG-OR Genuine Replacement | O-Ring | for 4.5" Filters

**Brand:** a. o. smith
**Price:** € 29.95
**Availability:** ✅ In Stock

## Summary

> 💧 Seal your home’s hydration with confidence — don’t let leaks cramp your flow!

## Quick Answers

- **What is this?** AO-WH-LG-OR Genuine Replacement | O-Ring | for 4.5" Filters by a. o. smith
- **How much does it cost?** € 29.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/189163553-ao-wh-lg-or-genuine-replacement-o-ring-for-4)

## 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

- • **Premium Durability:** Crafted from high-quality synthetic rubber for long-lasting performance and resistance to wear.
- • **Leak-Free Confidence:** Maintains a water-tight seal to protect your whole house filtration system from leaks and inefficiencies.
- • **Perfect Fit Every Time:** Specifically designed for 4.5 inch filter housings to guarantee seamless installation.
- • **Trusted Brand Assurance:** Genuine A. O. Smith part ensures compatibility and optimal contaminant removal.
- • **Easy Replacement Routine:** Ideal for filter changes every 3-6 months, keeping your water system running flawlessly.

## Overview

The AO Smith AO-WH-LG-OR is a 5.48 inch diameter synthetic rubber O-ring designed to fit most 4.5 inch whole house water filter housings. Engineered for a perfect, leak-proof seal, it ensures optimal filtration system performance and durability. Ideal for routine filter replacements every 3-6 months, this genuine A. O. Smith part guarantees compatibility and long-lasting reliability.

## Description

The A. O. Smith AO-WH-LG-OR is a large 4.5-inch replacement O-ring gasket designed for whole house sediment water filter housings. It maintains a watertight seal to prevent leaks, measures approximately 5.48 inches in inner diameter, and is recommended for replacement every 3 to 6 months.

## Features

- Large O-Ring 5.48 inch 14 cm actual diameter
- Replacement for use with: Whole House Sediment Filter AO-WH-PRE. Also fits most filter sumps designed for 4.5" filter elements.
- Use only genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
- Keep the water-tight seal on your whole house sediment filter. Use when you change out your filter every 3-6 months.
- Includes 1 large O-ring, individually packaged.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZG3BD5Y |
| Best Sellers Rank | #130,505 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #37 in Faucet O-Rings |
| Brand Name | A. O. Smith |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (243) |
| Item Diameter | 5.48 inches |
| Item Highlight | Replacement for Housings for 4.5 In Filters | 5.48 In / 14 Cm Diameter | Prevents Leaks |
| Item Weight | 0.02 kg |
| Manufacturer | AO Smith |
| Material Type | Rubber |
| Model | AO-WH-LG-OR |
| Nominal Inside Diameter | 5.48 inches |
| Nominal Outside Diameter | 5.48 inches |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Part Number | AO-WH-LG-OR |
| UPC | 193074743154 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** A. O. Smith
- **Color:** Black
- **Item Diameter:** 5.48 inches
- **Material:** Rubber
- **Nominal Inside Diameter:** 5.48 inches

## Images

![AO-WH-LG-OR Genuine Replacement | O-Ring | for 4.5" Filters - Image 1](https://m.media-amazon.com/images/I/31IFemle0bL.jpg)
![AO-WH-LG-OR Genuine Replacement | O-Ring | for 4.5" Filters - Image 2](https://m.media-amazon.com/images/I/41bXXnI7d2L.jpg)
![AO-WH-LG-OR Genuine Replacement | O-Ring | for 4.5" Filters - Image 3](https://m.media-amazon.com/images/I/71n4yX9-y6L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What is it's shelf life?**
A: Would assume it last awhile depending on how and where you store it.  We buy them in bulk and haven’t had issues with them but keep them stored indoors.

**Q: Will this fit sterling water filter**
A: Not sure. I have just used this filter on my whole house filter and wanted to replace filter with same kind have been using. Whole house filter made by A O Smith.

**Q: The price is nearly double what you can buy in stores. Why?**
A: i just found it on EBAY. I found filter on Amazon, But they sent me wrong size filter and had to return.

**Q: Does this o-ring come with a small tube of grease?**
A: Yes. The o-ring by itself from amazon came with a small packet of very sticky clear grease. I have used vasoline before and it seemed to work just as well.on 1st 4 filters.

## Frequently Bought Together

- 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
- AO Smith 4.5"x10" 5 Micron Carbon Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RCP
- AO Smith 4.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RP

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**Shop now:** [https://www.desertcart.sk/products/189163553-ao-wh-lg-or-genuine-replacement-o-ring-for-4](https://www.desertcart.sk/products/189163553-ao-wh-lg-or-genuine-replacement-o-ring-for-4)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-18*