---
product_id: 12014480
title: "Uniweld K37 Air/Acetylene Soft Flame Kit for B Tank with TH3 Handle and S23 Screw Connect Tip"
brand: "uniweld"
price: "₨119023"
currency: LKR
in_stock: true
reviews_count: 8
category: "Uniweld"
url: https://www.desertcart.lk/products/12014480-uniweld-k37-air-acetylene-soft-flame-kit-for-b-tank
store_origin: LK
region: Sri Lanka
---

# protective acetylene regulator 2700°F precise heat stainless steel torch handle Uniweld K37 Air/Acetylene Soft Flame Kit for B Tank with TH3 Handle and S23 Screw Connect Tip

**Brand:** uniweld
**Price:** ₨119023
**Availability:** ✅ In Stock

## Summary

> 🔥 Light Up Your Craft with Unmatched Precision!

## Quick Answers

- **What is this?** Uniweld K37 Air/Acetylene Soft Flame Kit for B Tank with TH3 Handle and S23 Screw Connect Tip by uniweld
- **How much does it cost?** ₨119023 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/12014480-uniweld-k37-air-acetylene-soft-flame-kit-for-b-tank)

## Best For

- uniweld enthusiasts

## Why This Product

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

## Key Features

- • **Ergonomic Control:** TH3 torch handle with rear control valve ensures exact gas flow and positive shutoff for safety and efficiency.
- • **Precision Heat Mastery:** Delivers a sharp 2700°F flame for flawless soldering and brazing every time.
- • **Complete Kit Convenience:** Includes acetylene regulator with rubber gauge boot, 12.5 ft hose, and security chain tank key—everything you need to get started.
- • **Durable & Reliable Build:** Crafted with stainless steel and backed by Uniweld’s trusted legacy—your go-to tool for professional-grade results.
- • **Versatile Copper Compatibility:** Solder up to 1/2 inch and braze up to 3/8 inch copper tubing with included tip—expandable to larger sizes with optional tips.

## Overview

The Uniweld K37 Air/Acetylene Soft Flame Kit is a professional-grade soldering and brazing tool designed for plumbers and technicians. It produces a precise 2700°F flame capable of handling copper tubing up to 1/2 inch for soldering and 3/8 inch for brazing, with optional tips for larger sizes. Featuring a stainless steel torch handle with rear gas control valve and a protective acetylene regulator, this kit offers durability, safety, and versatility in one complete package.

## Description

Uniweld K37 Air/Acetylene Soft Flame Kit has always been the Old Reliable flame tool for plumbers, producing a precise 2700 Degrees Fahrenheit target heat for soldering and brazing copper tubing. Capable of soldering up to 1/2 inch and brazing up to 3/8 inch copper tubing with supplied tip. Capabilities can be expanded to solder up to 4 inch and Braze up to 1-1/2 inch copper tubing with optional tips sold separately. Kit Includes: Part No. TH3 Torch Handle with stainless steel ball point rear control valve for accurate gas control and positive shutoff, Part No. S23 Soft Flame Air/Acetylene Screw Connect Tip for soldering up to 1/2 inch and brazing up to 3/8 inch copper tubing, Part No. RB Acetylene Regulator with protective rubber gauge boot, (A) hose outlet connection and CGA520 rear inlet connection for (B) tank (Tank Not Included – Sold Separately), Part No. H12 12.5 Ft. Acetylene Hose with (A) fitting connection, Part No. WO5 Tank Key with Security Chain.

Review: Reliable and a trusted name brand! - I got this to replace my older one that had the regulator damaged. It's just what I'm used to, but newer looking. Everything works as it should.
Review: Exactly what I needed - As an oil burner tech, this torch works perfectly for my needs. It is a quality tool and I’m very happy with my purchase.

## Features

- Air/Acetylene Soft Flame Kit has always been the Old Reliable flame tool for plumbers
- Produces a precise 2700 Degrees Fahrenheit target heat for soldering and brazing copper tubing
- Capable of soldering up to 1/2 inch and brazing up to 3/8 inch copper tubing with supplied tip
- Torch Handle with rear control valve for accurate gas control and positive shutoff
- Acetylene Regulator for B Tank with protective rubber gauge boot

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008BH5TSW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,001,126 in Automotive ( See Top 100 in Automotive ) #317 in Welding Gas Regulators |
| Color | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (56) |
| Date First Available | August 27, 2009 |
| Included Components | 12.5 ft Acety, A-Tank Connection |
| Installation Method | gas-welding |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.75 pounds |
| Item model number | K37 |
| Manufacturer | Uniweld Products Inc. |
| Material | stainless steel |
| Number of Handles | 1 |
| Part Number | K37 |
| Product Dimensions | 11.5 x 4.38 x 16 inches |

## Images

![Uniweld K37 Air/Acetylene Soft Flame Kit for B Tank with TH3 Handle and S23 Screw Connect Tip - Image 1](https://m.media-amazon.com/images/I/71Hy6xGpy1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable and a trusted name brand!
*by J***M on July 18, 2025*

I got this to replace my older one that had the regulator damaged. It's just what I'm used to, but newer looking. Everything works as it should.

### ⭐⭐⭐⭐⭐ Exactly what I needed
*by J***L on March 30, 2024*

As an oil burner tech, this torch works perfectly for my needs. It is a quality tool and I’m very happy with my purchase.

### ⭐⭐⭐⭐⭐ Great setup!
*by D***E on July 11, 2023*

Great price, speedy delivery, solid made, multiple torch head sizes available, and a plumber's dream instead of hauling around oxy-acetylene equipment.

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**Shop now:** [https://www.desertcart.lk/products/12014480-uniweld-k37-air-acetylene-soft-flame-kit-for-b-tank](https://www.desertcart.lk/products/12014480-uniweld-k37-air-acetylene-soft-flame-kit-for-b-tank)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-16*