---
product_id: 287575322
title: "(66661) Brass Manifold Gauge Set"
brand: "mastercool"
price: "$U11657"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/287575322-66661-brass-manifold-gauge-set
store_origin: UY
region: Uruguay
---

# 2.5” silicone-dampened gauges for smooth readings Free-floating piston valves reduce wear Heavy-duty forged brass body (66661) Brass Manifold Gauge Set

**Brand:** mastercool
**Price:** $U11657
**Availability:** ✅ In Stock

## Summary

> 🛠️ Master the cool with precision and durability that professionals trust!

## Quick Answers

- **What is this?** (66661) Brass Manifold Gauge Set by mastercool
- **How much does it cost?** $U11657 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/287575322-66661-brass-manifold-gauge-set)

## 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:** Forged brass body ensures unmatched durability for professional-grade use.
- • **Smooth Precision:** Silicone-dampened 2.5” gauges deliver stable, jitter-free needle movement for accurate diagnostics.
- • **Extra Access Port:** Convenient vacuum line port enhances versatility for complex HVAC tasks.
- • **Extended Valve Life:** Free-floating piston valves minimize friction, prolonging internal o-ring lifespan.
- • **Instant Refrigerant ID:** Color-coded gauges for R134a and R12 refrigerants speed up your workflow with zero guesswork.

## Overview

The Mastercool 66661 Brass Manifold Gauge Set is a U.S.-designed and assembled HVAC tool featuring a heavy-duty forged brass body, free-floating piston valves for reduced wear, and 2.5-inch silicone-dampened gauges with color-coded refrigerant indicators. It includes an extra access port for vacuum lines, making it a reliable, long-lasting choice for HVAC professionals seeking accuracy and efficiency.

## Description

(66661) Brass Manifold Gauge Set

## Features

- 100% U.S. designed, assembled and tested
- HEAVY DUTY FORGED BRASS BODY gives life-long durability and endurance
- FREE FLOATING PISTON TYPE VALVES allow for less friction and internal wear and tear extending the life of the internal o-rings
- 2 1/2” SILICONE DAMPENED GAUGES smooth out needle movement while the color coding of R134a and R12 provides immediate refrigerant recognition
- EXTRA ACCESS PORT for vacuum line

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mastercool |
| Brand | MASTERCOOL |
| Model | R134a/R12 Brass Manifold Gauge Set with 3-60" Hoses and Economy Couplers |
| Item model number | 66661 |
| Manufacturer Part Number | 66661 |
| Item Weight | 45.4 g |

## Product Details

- **Brand:** MASTERCOOL
- **Material:** Brass
- **Item weight:** 45 g
- **Screen size:** 6.35 Centimeters
- **UPC:** 070037666661 666671187237 700376666618

## Images

![(66661) Brass Manifold Gauge Set - Image 1](https://m.media-amazon.com/images/I/71oKDkdf+6L.jpg)
![(66661) Brass Manifold Gauge Set - Image 2](https://m.media-amazon.com/images/I/81tGNAbnSLL.jpg)
![(66661) Brass Manifold Gauge Set - Image 3](https://m.media-amazon.com/images/I/81zjFo-dexL.jpg)
![(66661) Brass Manifold Gauge Set - Image 4](https://m.media-amazon.com/images/I/81uKf+wqZfL.jpg)
![(66661) Brass Manifold Gauge Set - Image 5](https://m.media-amazon.com/images/I/817dV06VdIL.jpg)

## Frequently Bought Together

- Mastercool 66661 2-Way Brass Manifold Gauge Set with 2 1/2" Silicone-Dampened Gauges, Economy Couplers, and 60" Hoses for R134a - U.S. Assembled & Tested
- Mastercool 85510 R134A Can Tap, Silver
- 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 1/4 Inch Flare Female 1/2 Inch Male

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**Shop now:** [https://www.desertcart.uy/products/287575322-66661-brass-manifold-gauge-set](https://www.desertcart.uy/products/287575322-66661-brass-manifold-gauge-set)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-02*