---
product_id: 11113976
title: "49138 3-1/8\" Blue Compound, 30\", 0-350 psi, R-22/404A/410A Gauge Degrees F"
brand: "yellow jacket"
price: "₨1401"
currency: SCR
in_stock: true
reviews_count: 10
category: "Yellow Jacket"
url: https://www.desertcart.sc/products/11113976-49138-3-1-8-blue-compound-30-0-350-psi
store_origin: SC
region: Seychelles
---

# 3-1/8" large gauge for precise readings Color-coded blue for easy refrigerant ID 1% calibration accuracy for trusted data 49138 3-1/8" Blue Compound, 30", 0-350 psi, R-22/404A/410A Gauge Degrees F

**Brand:** yellow jacket
**Price:** ₨1401
**Availability:** ✅ In Stock

## Summary

> 🔧 Stay Cool, Stay Ahead – The Gauge That Means Business

## Quick Answers

- **What is this?** 49138 3-1/8" Blue Compound, 30", 0-350 psi, R-22/404A/410A Gauge Degrees F by yellow jacket
- **How much does it cost?** ₨1401 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/11113976-49138-3-1-8-blue-compound-30-0-350-psi)

## Best For

- yellow jacket enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Readability:** Large 3-1/8" dial with high-visibility color-coded scales for quick, error-free monitoring.
- • **Seamless Compatibility:** 1/8" NPT male connection fits industry-standard HVAC systems with ease.
- • **Durability Meets Design:** Rugged brass construction with flutter-less tech and surge protector for needle stability under pressure.
- • **Precision You Can Trust:** Calibrated to 1% accuracy ensuring flawless pressure readings every time.
- • **Engineered for Professionals:** Color-coded for R-22/404A/410A refrigerants, making your workflow faster and smarter.

## Overview

The Yellow Jacket 49138 is a professional-grade 3-1/8" blue compound gauge designed for HVAC technicians working with R-22, 404A, and 410A refrigerants. Featuring 1% calibration accuracy, a durable brass body, and a flutter-less needle with surge protection, it delivers precise, stable readings. Its large, color-coded dial and 1/8" NPT male connection ensure quick, reliable measurements, making it a top choice for industry professionals seeking efficiency and accuracy.

## Description

Large 3-1/8 inch gauges are housed in a red or blue steel case with front recalibrates screw. High visibility colored temperature scales are easy to read through the full view polycarbonate crystal. Flutter less technology with brass surge protector to minimize needle pulsation, brass gauge movement. Copper alloy bourdon tube, color-coded refrigerant types.

Review: Work - Great product
Review: Precise - Reads on point. Get boots to keep em accurate

## Features

- Color coded blue for compound
- Calibrated to 1% accuracy
- 1/8" NPT male connection
- Item Package Dimension: 2.0" L x 2.0" W x 2.0" H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00159TFU6 |
| Best Sellers Rank | #59,486 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #100 in Industrial Pressure Gauges |
| Brand | Yellow Jacket |
| Brand Name | Yellow Jacket |
| Customer Reviews | 4.7 out of 5 stars 874 Reviews |
| Global Trade Identification Number | 00686800491387 |
| Item Dimensions | 6.2 x 6.25 x 4.5 inches |
| Item dimensions L x W x H | 6.2 x 6.25 x 4.5 inches |
| Manufacturer | Fotronic Corporation |
| Material | Brass |
| Material Type | Brass |
| Model | 49138 |
| Number of Items | 1 |
| Part Number | 49138 |
| Thread Style | Npt |
| Thread Type | Npt |
| UPC | 686800491387 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Yellow Jacket
- **Item dimensions L x W x H:** 6 x 6 x 4 inches
- **Material:** Brass
- **Thread Type:** Npt
- **UPC:** 686800491387

## Images

![49138 3-1/8" Blue Compound, 30", 0-350 psi, R-22/404A/410A Gauge Degrees F - Image 1](https://m.media-amazon.com/images/I/61JCt+M4cdL.jpg)

## Questions & Answers

**Q: Is the full scale 500 psi (as pictured) or 350 psi (as in description)?**
A: *30", 0-350 psi - retard protection to 500 psi

**Q: Will this gauge fit on my 42006 series 41 manifold? I got the wrong gauges (r22, 134a, and 404a) and I need the 410a.**
A: I see no reason why it shouldn't fit...threads should be the same...but you will need to be able to hook it up to your AC system and those end connectors may be your problem...make sure you have the proper end fittings that you need for your system. I have multiple gauges for mine that I can interchange.

**Q: Hi i need a low side and high side for: R134A,507 and 404?**
A: You need a gauge, gauge and hoses?

**Q: Will this work for R134?**
A: I'm a 20yr tech. It will work for any refrigerant really... it just doesn't give the saturation temp of R134a.  But it will give pressures which is the main purpose of gauges.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work
*by K***Y on July 13, 2026*

Great product

### ⭐⭐⭐⭐⭐ Precise
*by M***A on May 14, 2026*

Reads on point. Get boots to keep em accurate

### ⭐⭐⭐⭐⭐ Buena
*by C***A on June 24, 2026*

Muy buena

## Frequently Bought Together

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-08-29*