---
product_id: 542707468
title: "Flame King YSN401 40 Pound Steel Propane Tank Cylinder With Overflow Protection Device Valve, White"
brand: "flame king"
price: "$519.05"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/542707468-flame-king-ysn401-40-pound-steel-propane-tank-cylinder-overflow
store_origin: US
region: United States of America
---

# 40 lb propane capacity with OPD valve High-grade welded steel construction DOT & Transport Canada certified safety Flame King YSN401 40 Pound Steel Propane Tank Cylinder With Overflow Protection Device Valve, White

**Brand:** flame king
**Price:** $519.05
**Availability:** ✅ In Stock

## Summary

> 🔥 Fuel your freedom with Flame King’s safest 40 lb propane tank!

## Quick Answers

- **What is this?** Flame King YSN401 40 Pound Steel Propane Tank Cylinder With Overflow Protection Device Valve, White by flame king
- **How much does it cost?** $519.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/542707468-flame-king-ysn401-40-pound-steel-propane-tank-cylinder-overflow)

## 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

- • **Built to Last:** Crafted from premium welded steel and powder coated to resist rust and wear, ensuring durability through every adventure.
- • **Safety You Can Trust:** Pre-purged and vacuum-ready for hassle-free filling with LP gas, plus x-ray and hydrostatic tested for ultimate peace of mind.
- • **Compliant & Convenient:** Equipped with a legally required Overfilling Prevention Device (OPD) valve, accepted at nearly all refill stations.
- • **Versatile Compatibility:** Standard connection valve fits seamlessly with RVs, trailers, heaters, and a wide range of propane accessories.
- • **Industry-Leading Quality:** From 1 lb to 100 lb tanks, Flame King sets the standard for premium, refillable propane storage solutions.

## Overview

The Flame King YSN401 is a 40-pound steel propane tank designed for professional-grade safety and durability. Pre-purged and vacuum-ready, it features a premium OPD valve to prevent overfilling, and meets rigorous DOT and Transport Canada certifications. Its high-grade welded steel body is powder coated for rust resistance, making it ideal for RVs, trailers, heaters, and more.

## Description

Flame King YSN401 40 Pound Steel Propane Tank Cylinder With Overflow Protection Device Valve, White

## Features

- Safety first - Flame King tanks are Pre-purged vacuum ready for filling with LP gas - they are x-ray and hydrostatic tested plus Department of Transportation (DOT) and Transport Canada (tc) certified
- High quality - each tank is constructed from high grade Welded Steel and powder coated for long lasting durability.
- Premium valve - Premium OPD (overfilling prevention device) valve assembly which is required by law in most States, if your tank doesn't have this, most places won't fill it!
- Leading the industry - Flame King, a leader in propane storage solutions, prides themselves on making the highest quality, premium, refillable propane tanks on the market. From 1lb up to 100lb tanks, we've got you covered
- Suit your needs - With a standard-size connection valve, This large 40 lb tank will connect as easily as smaller tanks, and work with RVs or trailers, propane tank attachable heaters, and other accessories.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 30.48 x 76.2 x 30.48 cm; 14.11 kg |
| Part number | 302018 |
| Material type | Steel |
| Power source type | Propane |
| Manufacturer | Flame King |
| Item model number | YSN401 |
| ASIN | B004LZN5ES |

## Product Details

- **Brand:** Flame King
- **Capacity:** 40 Pounds
- **Color:** White
- **Material:** Alloy Steel
- **Number of Packs:** 1

## Images

![Flame King YSN401 40 Pound Steel Propane Tank Cylinder With Overflow Protection Device Valve, White - Image 1](https://m.media-amazon.com/images/I/61ahwbNlHBL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.us/products/542707468-flame-king-ysn401-40-pound-steel-propane-tank-cylinder-overflow](https://www.desertcart.us/products/542707468-flame-king-ysn401-40-pound-steel-propane-tank-cylinder-overflow)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-18*