---
product_id: 218239094
title: "53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large"
brand: "mastercool"
price: "€ 319.97"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/218239094-53376-r134a-visual-inspection-sight-glass-with-r134a-quick-couplers
store_origin: NL
region: Netherlands
---

# Leak-free control Visual inspection Durable hoses 53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large

**Brand:** mastercool
**Price:** € 319.97
**Availability:** ✅ In Stock

## Summary

> 🔧 Master your A/C game with precision and style!

## Quick Answers

- **What is this?** 53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large by mastercool
- **How much does it cost?** € 319.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/218239094-53376-r134a-visual-inspection-sight-glass-with-r134a-quick-couplers)

## Best For

- mastercool enthusiasts

## Why This Product

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

## Key Features

- • **Built to last:** 60” nylon barrier charging hoses meet SAE J2196 standards for maximum durability and refrigerant containment.
- • **See the unseen:** The R134a Visual Inspection Sight Glass allows you to visually assess refrigerant condition at a glance.
- • **Stay in control:** Equipped with a ball valve for leak-free operation, ensuring your refrigerant stays where it belongs.
- • **Vehicle specific fit:** Designed to fit your vehicle perfectly, making A/C maintenance a breeze.
- • **Quick connect convenience:** High and low side quick couplers snap easily to A/C service ports, even in tight spaces.

## Overview

The Mastercool 53376 R134a Visual Inspection Sight Glass is an essential tool for automotive A/C maintenance, featuring a transparent sight glass for refrigerant condition assessment, leak-free ball valve control, and durable quick couplers. With 60” nylon barrier charging hoses that meet SAE standards, this product ensures efficient and safe refrigerant handling, tailored for specific vehicle applications.

## Description

53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large

## Features

- R134a VISUAL INSPECTION SIGHT GLASS lets the user to see the condition of the refrigerant in the vehicle A/C system
- INCLUDES REFRIGERANT CONDITION CHART which visually shows the possible contaminants that could be seen in the inspection glass
- BALL VALVE provides leak free control and allows extracted refrigerant to be deposited back into the system
- HIGH AND LOW SIDE QUICK COUPLERS easily snap to A/C service ports and are designed to work in tight quarters
- R134a 60” NYLON BARRIER CHARGING HOSES meets SAE J2196 for containment of refrigerant while providing maximum durability
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mastercool |
| Brand | Mastercool |
| Model | R134a Visual Inspection Sight Glass with R134a Quick Couplers |
| Item Weight | 3 pounds |
| Product Dimensions | 11 x 9 x 5 inches |
| Country of Origin | Taiwan |
| Item model number | 53376 |
| Exterior | Machined |
| Manufacturer Part Number | 53376 |
| Special Features | Includes all fittings, Ball valve controlled, High pressure hoses, transparent sight glass, heavy duty couplers |
| Lift Type | Manual |
| Voltage | 12 Volts |

## Images

![53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large - Image 1](https://m.media-amazon.com/images/I/81MeEiyomGL.jpg)
![53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large - Image 2](https://m.media-amazon.com/images/I/71QK5zoIyQL.jpg)
![53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large - Image 3](https://m.media-amazon.com/images/I/51J-9HeYTiL.jpg)
![53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large - Image 4](https://m.media-amazon.com/images/I/61veDGI6EoL.jpg)
![53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large - Image 5](https://m.media-amazon.com/images/I/61k1wT+kD8L.jpg)

## Questions & Answers

**Q: Cardboard or plastic box? There is a cust post that state it was cardboard.**
A: Plastic box. The fist order went out in cardboard box as the plastic boxes had not arrived. All are in plastic boxes now

**Q: I need the plastic box only, I bought one and it came in a cardboard box. How can I do?**
A: Hello,
To buy the plastic box you would go through one of Mastercool's distributors and purchase the 53376-PB which is the part number for the plastic box.

**Q: Can the sight glass be opened for cleaning/removal of contaminants or is it permanently sealed?**
A: Yes you can unscrew the glass cylinder for cleaning. The aluminum ends are threaded. Carefully unscrew either end. After cleaning be careful to fit the glass cylinder over the leading edge of the aluminum threaded ends. Do not over-tighten.

## Frequently Bought Together

- Mastercool 53376 R134a Visual Inspection Sight Glass with R134a Quick Couplers, Red/Blue, Extra Large
- Robinair FLCK-1 Filter Conversion Kit for Promax Recovery and Recycling Units, 2 Piece Set
- 4 Pieces 6015 R134A Brass Refrigerant Tank Adapter to R12 Fitting Adapter 1/2 Female to 1/4 Male Flare Adaptor Valve Core and 6014 Vacuum Pump Adapter 1/4 Inch Flare Female to 1/2 Inch Male

---

## 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.nl/products/218239094-53376-r134a-visual-inspection-sight-glass-with-r134a-quick-couplers](https://www.desertcart.nl/products/218239094-53376-r134a-visual-inspection-sight-glass-with-r134a-quick-couplers)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-27*