---
product_id: 256211095
title: "Westone ER-9 Replacement Filter (Single) for ES49, 9dB, Blue"
price: "C$10396"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/256211095-westone-er-9-replacement-filter-single-for-es49-9db-blue
store_origin: NI
region: Nicaragua
---

# Westone ER-9 Replacement Filter (Single) for ES49, 9dB, Blue

**Price:** C$10396
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Westone ER-9 Replacement Filter (Single) for ES49, 9dB, Blue
- **How much does it cost?** C$10396 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/256211095-westone-er-9-replacement-filter-single-for-es49-9db-blue)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Westone ER-9 Replacement Filter (Single) for ES49, 9dB, Blue

## Images

![Westone ER-9 Replacement Filter (Single) for ES49, 9dB, Blue - Image 1](https://m.media-amazon.com/images/I/31ud373n7aL.jpg)

## Questions & Answers

**Q: What do you plug these into?**
A: I used these with my Westone custom molded earplugs. They are used by a variety of manufacturers for their custom fit earplugs.

## Frequently Bought Together

- Westone ER-9 Replacement Filter (Single) for ES49, 9dB, Blue
- Etymotic Research® ER-9 Single Filter for Musicians' Earplugs™ (Red)
- Etymotic Research ER-15 Single Filter for Musicians' Earplugs (Clear)

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**Shop now:** [https://www.desertcart.ni/products/256211095-westone-er-9-replacement-filter-single-for-es49-9db-blue](https://www.desertcart.ni/products/256211095-westone-er-9-replacement-filter-single-for-es49-9db-blue)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-20*