---
product_id: 14720543
title: "Motor Guard RG4520 1/2 NPT Compressed Air Regulator"
brand: "motor guard"
price: "HK$1041"
currency: HKD
in_stock: true
reviews_count: 3
category: "Motor Guard"
url: https://www.desertcart.hk/products/14720543-motor-guard-rg4520-1-2-npt-compressed-air-regulator
store_origin: HK
region: Hong Kong
---

# 100 CFM airflow capacity 0-125 PSI adjustable outlet pressure 1/2 NPT pipe size Motor Guard RG4520 1/2 NPT Compressed Air Regulator

**Brand:** motor guard
**Price:** HK$1041
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master your airflow, own your workspace.

## Quick Answers

- **What is this?** Motor Guard RG4520 1/2 NPT Compressed Air Regulator by motor guard
- **How much does it cost?** HK$1041 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/14720543-motor-guard-rg4520-1-2-npt-compressed-air-regulator)

## Best For

- motor guard enthusiasts

## Why This Product

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

## Key Features

- • **Made in the USA:** Crafted domestically for quality assurance and reliability you can trust every day.
- • **Robust Capacity:** Handles up to 100 CFM airflow and max 300 PSI pressure—built to keep your tools running smoothly.
- • **Durable Visibility:** Pressure gauge features solvent-proof glass lens for clear, long-lasting readouts under any conditions.
- • **Effortless Adjustment:** Locking T-handle lets you dial in your perfect pressure setting with confidence and ease.
- • **Precision Air Control:** True diaphragm design ensures exact pressure regulation for flawless workstation performance.

## Overview

The Motor Guard RG4520 is a compact, 1/2 NPT compressed air regulator designed for precise pressure control near your workstation. Featuring a true diaphragm relieving regulator, a locking T-handle for secure adjustments, and a solvent-proof glass lens pressure gauge, it supports airflow up to 100 CFM and outlet pressures from 0 to 125 PSI. Made in the USA, it combines durability with professional-grade performance for home shops and light industrial use.

## Description

The model RG-4520 from Motor Guard is a true diaphragm, relieving type regulator for precise control of air pressure near the workstation. This product includes a locking T-handle for ease of adjustment and a pressure gauge with a solvent-proof glass lens.

Review: Weak Diaphragm - Very weak diaphragm. Leaks after one week.
Review: Well built. - Well built but filter is a little on the small side. Great for the average home shop.

## Features

- Pipe Size is 1/2 NPT, Nominal Airflow is 100 CFM, Outlet Pressure Range is 0-125 PSI, Maximum Pressure is 300 PSI and the Temperature Range is 40-120F
- Includes a locking T-handle for ease of adjustment and a pressure gauge with a solvent-proof glass lens
- Made in USA
- True diaphragm that is a relieving type regulator for precise control of air pressure near the workstation
- Includes a locking T-handle for ease of adjustment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00063UIHQ |
| Air Flow Capacity | 100 Cubic Feet Per Minute |
| Batteries Required? | No |
| Best Sellers Rank | #653,089 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,579 in Air-Compressor Accessories |
| Customer Reviews | 3.8 3.8 out of 5 stars (19) |
| Date First Available | February 14, 2012 |
| Included Components | Locking T-handle, Pressure Gauge with Solvent-proof Glass Lens |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item model number | RG4520 |
| Manufacturer | Motor Guard |
| Material | Glass |
| Maximum Power | 0.25 Horsepower |
| Measurement System | Inches |
| Part Number | RG4520 |
| Power Source | ac_dc |
| Product Dimensions | 2.5 x 3.2 x 4.3 inches |
| Special Features | Portable, Automatic Shut-Off |
| Style | Music |
| Voltage | 120 Volts |

## Images

![Motor Guard RG4520 1/2 NPT Compressed Air Regulator - Image 1](https://m.media-amazon.com/images/I/51AJN0o5ugL.jpg)

## Customer Reviews

### ⭐ Weak Diaphragm
*by J***S on September 2, 2024*

Very weak diaphragm. Leaks after one week.

### ⭐⭐⭐⭐⭐ Well built.
*by B***3 on May 12, 2022*

Well built but filter is a little on the small side. Great for the average home shop.

### ⭐⭐ Review
*by P***L on January 26, 2025*

Cheap quality, but worked

---

## 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.hk/products/14720543-motor-guard-rg4520-1-2-npt-compressed-air-regulator](https://www.desertcart.hk/products/14720543-motor-guard-rg4520-1-2-npt-compressed-air-regulator)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-11*