---
product_id: 369481368
title: "AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size"
brand: "agptek"
price: "NZ$140"
currency: NZD
in_stock: true
reviews_count: 5
category: "Agptek"
url: https://www.desertcart.nz/products/369481368-agptek-oxygen-acetylene-flashback-arrestors-set-regulator-end-9-16
store_origin: NZ
region: New Zealand
---

# Internal flashback arrestor valves Standard 9/16-18 B size thread fittings Durable brass construction AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size

**Brand:** agptek
**Price:** NZ$140
**Availability:** ✅ In Stock

## Summary

> 🛠️ Lock in safety and precision with AGPTEK’s flashback arrestor set — weld like a pro, stress-free!

## Quick Answers

- **What is this?** AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size by agptek
- **How much does it cost?** NZ$140 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/369481368-agptek-oxygen-acetylene-flashback-arrestors-set-regulator-end-9-16)

## Best For

- agptek enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium brass material offers corrosion resistance and long-term durability under tough conditions.
- • **Precision Fit:** Standard B-size 9/16-18 thread fittings ensure seamless regulator attachment every time.
- • **Trusted by Pros:** Ranked #5 in Welding Gas Regulators with 4.5-star rating from over 1,500 users.
- • **Safety First, Always:** Dual internal check valves prevent dangerous flashbacks for worry-free welding.
- • **Compact & Lightweight:** Slim 5x2x10 cm design and ultra-lightweight 0.01 oz for easy handling and installation.

## Overview

The AGPTEK Oxygen Acetylene Flashback Arrestors Set features dual internal check valves for oxygen and acetylene, standard B-size 9/16-18 thread fittings for regulator compatibility, and a durable brass build. Highly rated and trusted by professionals, it ensures enhanced safety and reliability in welding applications.

## Description

From the manufacturer AGPTEK flashback arrestor set has internal check valves for both oxygen and acetylene. Standard -InchB Inch fittings for 9/16 -18 threads, B size. Attach at the regulator. Please note, the acetylene arrestor in this set can also be used for Propane or Mapp gas. Never connect a torch to acetylene and oxygen tanks without installing a set of flashback arrestors in the hoses at the regulators. Without these safety devices, it is possible a flash can occur within the hose and ultimately follow back into the tanks, causing an explosion. This would be an extremely rare occurrence, but flashback arrestors will make it a "never" occurrence. Check valves are only a first line of defense and may not ultimately stop a flashback. Only the flashback arrestors will.

Review: لا يفيد قليل الجوده - يوجد خلل مصنعي يخرج الهواء من الغطاء المكبوس ،!؟ جاري عملية الارجاع…
Review: Added safety feature - Good idea to install them

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | AGPTEK |
| Colour | GOLD |
| Connector type | Coupling |
| Item dimensions L x W x H | 5 x 2 x 10 centimeters |
| Material | Brass |
| Thread size | 9/16-18 |

## Product Details

- **Brand:** AGPTEK
- **Colour:** GOLD
- **Connector type:** Coupling
- **Item dimensions L x W x H:** 5 x 2 x 10 centimeters
- **Material:** Brass

## Images

![AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size - Image 1](https://m.media-amazon.com/images/I/716tRSsdQrL.jpg)
![AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size - Image 2](https://m.media-amazon.com/images/I/71hwHR4-0CL.jpg)
![AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size - Image 3](https://m.media-amazon.com/images/I/71WiMaVO4VL.jpg)
![AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size - Image 4](https://m.media-amazon.com/images/I/71hXB-bXuqL.jpg)
![AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size - Image 5](https://m.media-amazon.com/images/I/71yq9KJmukL.jpg)

## Questions & Answers

**Q: Does it need pipe tape on the threads for installation? Has anyone had an actuarial flashback and how did it do?**
A: These type fittings are brass against brass and need to be tightened snugly to make them not leak. Use a light soapy solution to check for any bubbles that form in the soapy water. If bubbles appear , tighten a little more. Don't use teflon tape. The seal is not on the thread area, but in the brass "ball and socket" area of the fittings.
These flash back arestors are for mounting on the tank, not at the torch. Avoid flashbacks at all costs. The can be fatal.

**Q: Are these arrestors UL approved?**
A: I don’t believe these spark arrestors are UL approved.  Nor do I think they would need UL approval. The design is simple, and they work. Cheap insurance. I wouldn’t crack open a bottle with out them.

**Q: The flow seems to be backwards on the arrestors I recieved. How to I fit to my torch?**
A: Well ,they only install one way ,male and female fittings. If gas flows out your torch they are working correctly !

**Q: I bought a victor medalist 350 acetylene torch set. do i need a cga-510 to cga-300 adapter if i use this arrestor?**
A: I used them on my standard size 9/16th ("B") regulators. Just buy the adapters at the same time to be sure. You can always return them if not needed!

## Customer Reviews

### ⭐ لا يفيد قليل الجوده
*by م***ي on 24 February 2023*

يوجد خلل مصنعي يخرج الهواء من الغطاء المكبوس ،!؟ جاري عملية الارجاع…

### ⭐⭐⭐⭐⭐ Added safety feature
*by F***S on 22 March 2026*

Good idea to install them

### ⭐⭐⭐⭐⭐ Good price.
*by T***D on 20 October 2025*

Work like they should.

## Frequently Bought Together

- AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size
- Hromee Oxygen Acetylene Hose 1/4-Inch × 50 Feet with 9/16"-18 B fittings Welding Cutting Torch Twin Hose
- Set of Victor G250 Oxygen & Acetylene Regulators

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-06-20*