---
product_id: 63342363
title: "Marshall 1122H-AAJ First Stage Propane LP Regulator 10PSI Output 1/4\" x 1/2\""
brand: "megr-1122h-aaj"
price: "€ 137.46"
currency: EUR
in_stock: true
reviews_count: 8
category: "Megr 1122 H Aaj"
url: https://www.desertcart.fr/products/63342363-marshall-1122h-aaj-first-stage-propane-lp-regulator-10psi-output
store_origin: FR
region: France
---

# 1,000,000 BTU max capacity Adjustable 8-12 PSI range 10 PSI precise output Marshall 1122H-AAJ First Stage Propane LP Regulator 10PSI Output 1/4" x 1/2"

**Brand:** megr-1122h-aaj
**Price:** € 137.46
**Availability:** ✅ In Stock

## Summary

> 🔥 Master your propane flow with precision and power!

## Quick Answers

- **What is this?** Marshall 1122H-AAJ First Stage Propane LP Regulator 10PSI Output 1/4" x 1/2" by megr-1122h-aaj
- **How much does it cost?** € 137.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/63342363-marshall-1122h-aaj-first-stage-propane-lp-regulator-10psi-output)

## Best For

- megr-1122h-aaj enthusiasts

## Why This Product

- Trusted megr-1122h-aaj brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Robust 250 PSI max input rating ensures durability and safety under pressure
- • **High Capacity Power:** Supports up to 1,000,000 BTU for heavy-duty applications
- • **Universal Compatibility:** Seamlessly replaces top models like Rego LV3403TR and Fisher R122H-AAJ
- • **Customizable Output Range:** Easily adjust between 8-12 PSI to fit your exact propane needs
- • **Precision Pressure Control:** Maintain optimal 10 PSI output for consistent performance

## Overview

The Marshall 1122H-AAJ First Stage Propane LP Regulator delivers a reliable 10 PSI output with adjustable settings from 8 to 12 PSI, supporting up to 1,000,000 BTU max capacity. Designed for durability with a 250 PSI max input, it fits 1/4" female NPT input and 1/2" female NPT output connections. Compatible with leading regulator models, it ensures safe, efficient propane pressure regulation for professional and home use.

## Description

Marshall First Stage Regulator - MEGR-1122H-AAJ 10 PSI Output - 1/4" Female NPT Input x 1/2" Female NPT Output 250 PSI Max Input - Must be used in conjunction with a Second Stage Low Pressure Regulator. Adjustable Output: 8 - 12 PSI 1,000,000 BTU Max Output Capacity Replaces: Rego LV3403TR, Fisher R122H-AAJ, Cavagna 984HP-04

Review: Good quality and craftsmanship - Good quality and nicely made. Very easy to use and works just as it was supposed to.
Review: Worked perfect - Worked perfect out of the box, obvious quality, which is important when dealing with gas.

## Features

- 10 PSI Output - 1/4" Female NPT Input x 1/2" Female NPT Output
- 250 PSI Max Input
- Adjustable Output: 8 - 12 PSI
- 1,000,000 BTU Max Output Capacity
- Replaces: Rego LV3403TR, Fisher R122H-AAJ, Cavagna 984HP-04

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079VQSW79 |
| Best Sellers Rank | #32,358 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #303 in Grill Connectors & Hoses |
| Customer Reviews | 4.5 4.5 out of 5 stars (104) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.65 pounds |
| Item model number | MEGR-1122H-AAJ |
| Manufacturer | MEGP |
| Package Dimensions | 6.22 x 5.04 x 4.37 inches |

## Images

![Marshall 1122H-AAJ First Stage Propane LP Regulator 10PSI Output 1/4" x 1/2" - Image 1](https://m.media-amazon.com/images/I/51cAu6HeruL.jpg)

## Questions & Answers

**Q: can I use this as a first stage regulator for a food truck?   my btu's needed to supply all 3 appliances is 280,000**
A: I operate 3 deep fryers and a instant hot water heater

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality and craftsmanship
*by J***F on October 19, 2025*

Good quality and nicely made. Very easy to use and works just as it was supposed to.

### ⭐⭐⭐⭐⭐ Worked perfect
*by V***. on December 25, 2024*

Worked perfect out of the box, obvious quality, which is important when dealing with gas.

### ⭐⭐⭐⭐⭐ Large LP Regulator.
*by B***Y on February 22, 2025*

Works great. I installed it on my 40' motorhone external 100# LP tank, and now I don't have a reduction in flow when it gets cold.

## Frequently Bought Together

- Marshall 1122H-AAJ First Stage Propane LP Regulator 10PSI Output 1/4" x 1/2"
- MCAMPAS 15 Inch Propane Regulator Copper Pigtail POL x 1/4"NPT Male Pipe Thread
- Emerson-Fisher LP-Gas Equipment R622-DFF 2nd Stage Regulator, 9-13" W.C Spring, 3/4" x 3/4" NPT

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---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-28*