---
product_id: 270670174
title: "Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black"
brand: "flame king"
price: "₨25579"
currency: LKR
in_stock: true
reviews_count: 5
category: "Flame King"
url: https://www.desertcart.lk/products/270670174-flame-king-thermo-plastic-hose-assembly-for-lp-and-natural
store_origin: LK
region: Sri Lanka
---

# 48-inch length for versatile RV fit 350 PSI max pressure rating -40°F to 140°F temperature range Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black

**Brand:** flame king
**Price:** ₨25579
**Availability:** ✅ In Stock

## Summary

> 🔥 Connect with Confidence – The Ultimate Hose for Your Next Adventure!

## Quick Answers

- **What is this?** Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black by flame king
- **How much does it cost?** ₨25579 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/270670174-flame-king-thermo-plastic-hose-assembly-for-lp-and-natural)

## Best For

- flame king enthusiasts

## Why This Product

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

## Key Features

- • **All-Weather Durability:** Operates flawlessly from -40°F to 140°F, perfect for every season and adventure.
- • **Certified Safety Assurance:** CSA and UL569/CAN 8.3-1 certified for propane gas, giving you peace of mind on the road.
- • **Built to Withstand Pressure:** Handles up to 350 PSI, ensuring reliable propane flow under demanding conditions.
- • **Premium Quality Construction:** Includes 3/8" MNPT x 1/2" female flare swivel with durable black thermo plastic for long-lasting performance.
- • **Precision Fit for RVs & Trailers:** 48-inch thermo plastic hose designed to seamlessly connect your two-stage regulator to permanent gas piping.

## Overview

The Flame King 48-inch Thermo Plastic Hose Assembly is a high-quality, CSA and UL certified propane hose designed specifically for RVs and travel trailers. Featuring a 3/8-inch inner diameter and robust 350 PSI pressure rating, it ensures safe and reliable gas flow across a wide temperature range from -40°F to 140°F. Its durable construction and precise fittings make it the go-to choice for professional-grade propane connections on the move.

## Description

Typically used on RVs and Travel Trailers to connect the Two-Stage Regulator to the permanent gas piping system. 3/8" ID Thermo Plastic Hose Assembly including a 3/8" MNPT x 1/2" Female Flare Swivel; Maximum Pressure Rating - 350 PSI; Temperature Range: -40 degrees Fahrenheit to 140 (-40 degrees Celsius to 60 Celsius); Certification - UL569 Used for Propane

Review: Works - Perfect length send seem high quality
Review: Just right - Exactly what I needed. Quality parts, durable finish. My only complaint is there not being a single option and having to buy two, but at least I’ll have a spare

## Features

- Size: 48 inches overall Length
- Typically used on RV's and Travel Trailers to connect the Two-Stage Regulator to the permanent gas piping system
- 3/8" ID Thermo Plastic Hose Assembly including a 3/8" MNPT x 1/2" Female Flare Swivel
- Maximum Pressure Rating - 350 PSI; Temperature Range: -40 degrees Fahrenheit to 140 (-40 degrees Celsius to 60 Celsius)
- Certification - CSA and UL569/CAN 8.3-1 for Propane Gas

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IZCNN9U |
| Best Sellers Rank | #134,473 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #405 in Plumbing Tubing & Hoses |
| Brand | Flame King |
| Brand Name | Flame King |
| Color | Black |
| Colour | Black |
| Country of Publication | China |
| Customer Reviews | 4.6 out of 5 stars 1,479 Reviews |
| Global Trade Identification Number | 00899003000854 |
| Included Components | 48 Inch Thermo Plastic Hose 3/8 Inch |
| Item Dimensions L x W | 121.9L x 0.8W centimeters |
| Item Length | 48 Inches |
| Item Type Name | 48-inch Propane Thermo Plastic Hose Assembly, 3/8-inch ID, 3/8-inch MPT X 1/2-inch Female Flare, for RVs and Travel Trailers |
| Item Weight | 0.68 Ounces |
| Item weight | 0.68 Ounces |
| Manufacturer | Flame King |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Pressure | 350 Pound per Square Inch |
| Maximum pressure | 350 Pound per Square Inch |
| Nominal Wall Thickness | 0.5 inch |
| Outside Diameter | 0.88 Inches |
| Product dimensions | 121.9L x 0.8W centimeters |
| UPC | 899003000854 |
| Unit Count | 4 Feet |

## Product Details

- **Brand:** Flame King
- **Colour:** Black
- **Item weight:** 8.8 Ounces
- **Material:** Plastic
- **Product dimensions:** 121.9L x 0.8W centimeters

## Images

![Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black - Image 1](https://m.media-amazon.com/images/I/61kZpxiIP0L.jpg)
![Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black - Image 2](https://m.media-amazon.com/images/I/71L0959QRfL.jpg)
![Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black - Image 3](https://m.media-amazon.com/images/I/717xdE-0M6L.jpg)
![Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black - Image 4](https://m.media-amazon.com/images/I/71TmBajZ4AL.jpg)
![Flame King Thermo Plastic Hose Assembly For LP and Natural Gas, 48 Inch, 3/8 Inch ID - 100383-48, Black - Image 5](https://m.media-amazon.com/images/I/81c3Lr+ljbL.jpg)

## Available Options

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

## Questions & Answers

**Q: Are there threads on the 3/8 female end?**
A: I left a comment above to someone else who said that this product was 3/8” male and female ends. It is not. 
I purchased the product and installed it today. It is 3/8” male NPT on one end, and 1/2” female flared swivel on the other. 
I installed this to complete my upgrade from a single tank to a dual propane system. The 3/8” male NPT threads into the outlet of the new dual regulator, and the 1/2 female flared swivel finished the connection to the main line going into my 2016 Coachmen trailer. 
The 4 foot hose was more than enough. I could have gotten by with 40” to 42”. 
Good product, good price.

**Q: This hose fits the regulator but not my rv. It’s too big. Is there an adapter I could use?**
A: Hi,
There are several adapters to fit different type of connections.
The most common ones are 1/4”, 3/8 and 1/2” NPT and there are a couple of different sizes of regulators.
I have no way to see which one you have or need, I’m sure if you google the RV specs. LP connector, etc. You will find the correct fitment or adapter to your needs.
I wish I could help you more.
Good luck!

**Q: Just to clarify fitting sizes could you screw one end into the other end?**
A: NO.  Thermo Plastic Hose Assembly including a 3/8" MNPT x 1/2" Female Flare Swivel, two different sizes on the ends.

**Q: Will the 1/2” female side fit on 1/2 black pipe**
A: The female side is a flare fitting it won’t fit npt threaded pipe without an adapter from npt to flare

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works
*by K***L on 31 May 2025*

Perfect length send seem high quality

### ⭐⭐⭐⭐⭐ Just right
*by M***E on 6 August 2026*

Exactly what I needed. Quality parts, durable finish. My only complaint is there not being a single option and having to buy two, but at least I’ll have a spare

### ⭐⭐⭐⭐⭐ Works on a regulator to rv.
*by J***Y on 28 August 2023*

This hose is just what I wanted to replace my single regulator to a dual switch over regulator for two tanks on our trailer. It has the male and female connections and can be purchased in different select lengths. Measure the length you need and get that length or next longer. When you connect the hose be sure to use Teflon tape made for LP gas and test connections with a soapy water solution to check for leaks. East to install and it’s good to replace your old hose if the covering is frayed, cracked or oxidized or just old. No use taking chances with a potential leak. I will keep this site in mind if I need another replacement. Shipping was less than a week.

## Frequently Bought Together

- Flame King 48-inch Propane Thermo Plastic Hose Assembly, 3/8-inch ID, 3/8-inch MPT X 1/2-inch Female Flare, for RVs and Travel Trailers
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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-09-13*