---
product_id: 298162043
title: "Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)"
brand: "flame king"
price: "€ 83.59"
currency: EUR
in_stock: true
category: "Flame King"
url: https://www.desertcart.be/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane
store_origin: BE
region: Belgium
---

# Auto-switch dual tank 345,200 BTU power High-strength leak lock Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)

**Brand:** flame king
**Price:** € 83.59
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your adventure fueled without a pause!

## Quick Answers

- **What is this?** Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails) by flame king
- **How much does it cost?** € 83.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane)

## 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

- • **Compact & Durable:** Machined exterior with lightweight 1.74 lbs design fits perfectly in tight spaces
- • **Safety-First Assembly:** Thread-locker secured fittings prevent leaks and ensure peace of mind
- • **Seamless Propane Flow:** Never run out—auto switches tanks instantly when empty
- • **Universal Compatibility:** Fits Flame King hoses and inverted flare pigtails for easy setup
- • **Dual-Stage Pressure Control:** Stable, consistent gas pressure for all your RV needs

## Overview

The Flame King ACR-2a is a UL-listed 2-stage propane regulator designed for RVs, vans, and trailers. It automatically switches between dual propane tanks to maintain uninterrupted fuel supply, supports up to 345,200 BTU, and features a factory-set pressure of 11" WC. Built with high-strength thread-locker for leak prevention, it ensures safe, reliable performance and is compatible with Flame King's hoses and inverted flare pigtails.

## Description

desertcart.com: Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails) : Automotive

## Features

- Allows removal of an empty cylinder for refill without interrupting the propane supply
- For RVs with dual propane tanks, it automatically switches from the primary tank to the reserve tank when the primary is empty
- UL LISTED: Inlets are 1/4" SAE inverted flare, and the outlet is 3/8" NPT female pipe thread; rated for 345,200 BTU
- Double-stage design maintains constant gas pressure under changing demand and conditions; the regulator is factory set at 11" WC (water column); lockout pressure is up to 14.9" WC
- Compatible with Flame King's 48-inch Thermo Plastic Hose (Model 100383-48) and 12-18 inch INVERTED FLARE Pigtails (Models E12INPT, E15INPT, or E18INPT)
- For your safety and to ensure leak-free performance, these regulators are assembled using high-strength thread-locker (Loctite) on the adapter connections where the pigtails are attached. This is an intentional safety measure designed to keep critical fittings secure and prevent gas leaks during use.
- Note: NPT pigtails are not recommended.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08XYH1JS7 |
| Best Sellers Rank | #34,373 in Automotive ( See Top 100 in Automotive ) #59 in RV Gas Supply Parts & Accessories |
| Brand | Flame King |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,886) |
| Date First Available | March 4, 2021 |
| Exterior | Machined |
| Item Weight | 1.74 pounds |
| Item model number | ACR-2a |
| Manufacturer | Flame King |
| Manufacturer Part Number | ACR-2a |
| Model | ACR-2a |
| Product Dimensions | 7 x 4 x 4 inches |

## Images

![Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails) - Image 1](https://m.media-amazon.com/images/I/71t9EDMwSqL.jpg)

## Available Options

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

## Frequently Bought Together

- Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)
- Flame King (KT12ACR-2) 2-Stage Auto Changeover LP Propane Gas Regulator With Two 12 Inch Pigtails For RVs, Vans, Trailers
- Flame King Propane Thermo Plastic Rubber Hose Assembly, 48-inch, 3/8-inch ID for RVs and Travel Trailers

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**Shop now:** [https://www.desertcart.be/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane](https://www.desertcart.be/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-14*