---
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: "€ 69.64"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane
store_origin: FI
region: Finland
---

# 2-stage auto tank switch 345,200 BTU power 1/4" SAE & 3/8" NPT fittings Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)

**Brand:** flame king
**Price:** € 69.64
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your RV fueled and your adventures unstoppable!

## 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?** € 69.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/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

- • **Built for Safety:** High-strength thread-locker ensures leak-free, worry-free use.
- • **Seamless Propane Flow:** Switch tanks without missing a beat—never run out mid-adventure.
- • **UL Listed Reliability:** Certified quality and performance you can trust on the road.
- • **Plug & Play Compatibility:** Works perfectly with Flame King hoses and pigtails for easy setup.
- • **Dual-Stage Pressure Control:** Consistent flame, no matter the demand or conditions.

## Overview

The Flame King ACR-2a is a UL-listed 2-stage propane regulator designed for RVs, vans, and trailers with dual propane tanks. It automatically switches from the empty primary tank to the reserve without interrupting gas flow, maintaining a steady pressure of 11" WC. Featuring 1/4" SAE inverted flare inlets and a 3/8" NPT outlet, it ensures safe, leak-free operation with high-strength thread-locker assembly. Compact and reliable, it’s engineered for seamless, worry-free propane management on the go.

## Description

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

## 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 |
|---------------|-------|
| Manufacturer | Flame King |
| Brand | Flame King |
| Model | ACR-2a |
| Item Weight | 1.74 pounds |
| Product Dimensions | 7 x 4 x 4 inches |
| Item model number | ACR-2a |
| Exterior | Machined |
| Manufacturer Part Number | ACR-2a |

## 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)

## Frequently Bought Together

- Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)
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**Shop now:** [https://www.desertcart.fi/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane](https://www.desertcart.fi/products/298162043-flame-king-acr-2a-2-stage-auto-changeover-lp-propane)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-26*