---
product_id: 331899690
title: "Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass"
brand: "ar annovi reverberi"
price: "R3651"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Ar Annovi Reverberi"
url: https://www.desertcart.co.za/products/331899690-annovi-reverberi-vrt3-310ez-unloader-black-spring-4500-psi-10
store_origin: ZA
region: South Africa
---

# 10.5 GPM max flow rate 4500 PSI max pressure Adjustable pressure knob Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass

**Brand:** ar annovi reverberi
**Price:** R3651
**Availability:** ✅ In Stock

## Summary

> ⚡ Boost your pressure washer’s lifespan with precision and power!

## Quick Answers

- **What is this?** Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass by ar annovi reverberi
- **How much does it cost?** R3651 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/331899690-annovi-reverberi-vrt3-310ez-unloader-black-spring-4500-psi-10)

## Best For

- ar annovi reverberi enthusiasts

## Why This Product

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

## Key Features

- • **Flow Mastery:** Delivers a robust 10.5 GPM to tackle any grime fast
- • **EZ Start Valve:** Built-in easy start valve reduces pump strain and extends lifespan
- • **Precision Control:** Adjustable knob lets you fine-tune pressure with ease
- • **Durable Brass Build:** Premium brass construction ensures long-lasting reliability
- • **Powerhouse Performance:** Handles up to 4500 PSI for heavy-duty cleaning power

## Overview

The Annovi Reverberi VRT3-310EZ Unloader is a high-performance brass valve designed to relieve built-up pressure in pressure washers. With a max pressure rating of 4500 PSI and a flow rate of 10.5 GPM, it features an adjustable knob for precise pressure control and an easy start valve to reduce pump strain, ensuring durability and extended pump life.

## Description

Extend the life of your pump by using an Annovi Reverberi unloader to ease added built up pressure within your pump. Manufactured from strong and reliable brass, this unloader has what it takes for high performance cleaning. This unloader attaches to your pump with ease featuring an inlet of 2 x 3/8" F and an outlet of 3/8" F. Built with an adjustable knob placed over top of the spring, this unloader is easy to control and monitor your internal pressure within your pump. This unloader also features a built in easy start valve. Prolong the life of your pump by adding an Annovi Reverberi unloader.

Review: Great value - Works better than one twice the price
Review: Works Flawlessly - I do mobile automotive repair and have a landscaping company I service. They asked me to repair their pressure washer (never tried to repair pressure washer but always willing to try). I concluded that the pressure regulatory valve had failed. My search sent me to to this one. Once installed, their pressure washer back in business. Works flawlessly and just as described. Definitely recommend!!

## Features

- Performance: 4,500 max PSI, 10.5 max GPM
- Inlet: 2 x 3/8" F
- Outlet Fitting: 3/8" F
- By-Pass Port Fitting: 2 x 3/8" F
- Features an Easy Start Valve
- Relieve built up pressure within your pump
- Made with durable brass
- Spring Color: Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GB6LD7Q |
| Best Sellers Rank | 427,976 in Garden ( See Top 100 in Garden ) 4,928 in Pressure Washer Accessories |
| Brand | AR ANNOVI REVERBERI |
| Customer Reviews | 4.6 out of 5 stars 67 Reviews |
| Exterior Finish | Brass |
| Exterior finish | Brass |
| Global Trade Identification Number | 00192216400023 |
| Included Components | Unloader |
| Inlet Connection Size | 0.38 Inches |
| Inlet Connection Type | 3/8 inch Female |
| Inlet connection size | 0.38 Inches |
| Inlet connection type | 3/8 inch Female |
| Item Dimensions | 20.3 x 15.2 x 30.5 centimetres |
| Item Type Name | VRT3-310EZ Unloader |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 20.3 x 15.2 x 30.5 centimetres |
| Manufacturer | Annovi Reverberi |
| Material | Brass |
| Maximum Pressure | 4500 Pound per Square Inch |
| Model Number | VRT3-310EZ |
| Number of Items | 1 |
| Number of Ports | 4 |
| Outlet Connection Size | 0.38 Inches |
| Outlet Connection Type | NPT |
| Part Number | VRT3-310EZ |
| Size | Black, 4500 PSI, Knob, EZ Start |
| Specification Met | ASME B16.34 |
| Thread Size | 3/8 inches |
| Thread Type | NPT |
| UPC | 192216400023 709257511931 660078736449 709257513232 |
| Unit Count | 1.0 count |
| Valve Type | Unloader Valve |

## Product Details

- **Material:** Brass
- **Brand:** AR ANNOVI REVERBERI
- **Item dimensions L x W x H:** 20.3 x 15.2 x 30.5 centimetres
- **Exterior finish:** Brass
- **Inlet connection size:** 0.38 inches
- **Inlet connection type:** Flange
- **Outlet connection type:** FNPT
- **Maximum operating pressure:** 3650 Pound per Square Inch
- **Number of ports:** 2
- **Outlet connection size:** 0.38 inches

## Images

![Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass - Image 1](https://m.media-amazon.com/images/I/61y7G9S2FwL.jpg)
![Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass - Image 2](https://m.media-amazon.com/images/I/61Feu4dWRIL.jpg)
![Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass - Image 3](https://m.media-amazon.com/images/I/61Zx0zm2KnL.jpg)
![Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass - Image 4](https://m.media-amazon.com/images/I/61XY8vuBomL.jpg)
![Annovi Reverberi VRT3-310EZ Unloader, Black Spring, 4500 PSI, 10.5 GPM, Adjustment Knob, EZ Start, Brass - Image 5](https://m.media-amazon.com/images/I/91HF6vBC-oL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: what does unloader come set at by default?**
A: They are not set coming from the factory.  I would recommend you to get a gauge and adjust the unloader once you have installed it.  We will be glad to help you out with that.

**Q: What temperature is the unloader valve tolerant of?**
A: Max Temp 194° F

**Q: I'm looking for a white spring unloader, can I just swap out the the blue spring white one?**
A: There is no White spring used in the VRT series so we could not speculate if this spring would work with the VRT .

**Q: Will this work on a tsf2021 8.5 gpm 3600psi pump**
A: The VRT3-250 Unloader can handle up to 3,650 max PSI, 10.5 max GPM and 3/8"F outlet

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great value
*by R***E on 14 July 2026*

Works better than one twice the price

### ⭐⭐⭐⭐⭐ Works Flawlessly
*by C***E on 10 May 2024*

I do mobile automotive repair and have a landscaping company I service. They asked me to repair their pressure washer (never tried to repair pressure washer but always willing to try). I concluded that the pressure regulatory valve had failed. My search sent me to to this one. Once installed, their pressure washer back in business. Works flawlessly and just as described. Definitely recommend!!

### ⭐⭐⭐⭐⭐ Put just under 40 hours on this unloader and works great!!!
*by B***U on 23 July 2019*

i bought this unit to replace the unloader on my powerwasher that had failed. had to do some creative mounting but works great. my only complaint is these are not marked anywhere with a part# to tell you what unloader you actually have. they all have same casting number but have different springs and components. so no way to tell exactly what model you actually recieved. price is good and home depot's entire rental fleet uses these unloaders which tells me they trust them.

## Frequently Bought Together

- AR ANNOVI REVERBERI VRT3-250EZ Pressure Washer Unloader, Blue, 3650 PSI, Knob, EZ Start, Brass
- AR Blue Clean Aqua Sweeper – Water Cleaner
- AR Blue Clean Rotary Brush for Pressure Washers

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-12*