---
product_id: 53180709
title: "FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1"
brand: "american photonics"
price: "262 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/53180709-fs25-4x4-1-fiber-laser-protective-window-d25-4xt4-1
store_origin: RO
region: Romania
---

# FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1

**Brand:** american photonics
**Price:** 262 Lei
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1 by american photonics
- **How much does it cost?** 262 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/53180709-fs25-4x4-1-fiber-laser-protective-window-d25-4xt4-1)

## Best For

- american photonics enthusiasts

## Why This Product

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

## Description

Protective&#xA0;Window D25.4xT4.1 Fused Silica AR/AR@1064nm Protective Windows: The contamination of the focusing lens is one of the main for poor laser performance and potential down time. The laser cutting head are very sensitive to any type of contamination. American Photonics has the best protective windows to protect our focusing lens against contamination. Our protective window is a barrier (debris shield) between the lens and the metal sheet. To protect your investment APC provide unbeatable combination of technology, innovation, quality and price for use in your fiber laser equipment. Diameter: 25.4mm Thickness: 4mm HQ Quartz Crystal: Irradiation-resistant, Stable Performance and Long Life, Low Scattering. Lower Power Loss Thin Film Coating Applied to Both Sides, High Damage Threshold (>15J/cm2) Many part number available. Also we can manufacture base on customers specification (customized parts).

## Features

- Fiber Laser Protective Windows High Power
- Fiber Laser Debris Shield
- Fiber Laser Windows - Fiber Glasses
- Fiber Protective Glasses
- HQ Quartz Crystal, Stable Performance and Long Life, Low Scattering, Lower Power Loss. Thin Film Coating Applied to Both Sides. - Many part number available. Also we can manufacture base on customers specification (customized parts).

## Images

![FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1 - Image 1](https://images-na.ssl-images-amazon.com/images/I/212lwd5HJgL.jpg)
![FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1 - Image 2](https://images-na.ssl-images-amazon.com/images/I/81n58t5tyrL.jpg)
![FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1 - Image 3](https://images-na.ssl-images-amazon.com/images/I/212lwd5HJgL.jpg)
![FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1 - Image 4](https://images-na.ssl-images-amazon.com/images/I/419df1zdn6L.jpg)
![FS25.4x4.1 - Fiber Laser Protective Window D25.4xT4.1 - Image 5](https://images-na.ssl-images-amazon.com/images/I/41dy2rQGyrL.jpg)

---

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**Shop now:** [https://www.desertcart.ro/products/53180709-fs25-4x4-1-fiber-laser-protective-window-d25-4xt4-1](https://www.desertcart.ro/products/53180709-fs25-4x4-1-fiber-laser-protective-window-d25-4xt4-1)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-09*