Rego LV003403B4 2nd Stage Propane Regulator 1/2″ NPT 11″ WC 450K BTU

Overview

Rego LV004303B4 Low Pressure 2nd Stage Propane Regulator – 1/2″ NPT

The Rego LV004303B4 Compact 2nd Stage Regulator is designed to reduce first-stage propane pressure from 5–20 PSIG down to low-pressure delivery, typically 11 inches water column, for residential and light commercial LP gas systems.

With a 450,000 BTU vapor capacity, this regulator is ideal for multiple appliance installations, propane heating systems, and medium-load gas applications.

The regulator features a large vent with 3/8″ NPT tapping, helping prevent vent blockage and allowing proper vent piping installation. The unique bonnet vent profile also helps minimize vent freeze-over in cold weather conditions.

Built-in pressure taps on both inlet and outlet make system testing and adjustment easier for HVAC and gas technicians.

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Key Features

• Compact second stage propane regulator
• 9″–13″ WC pressure adjustment range
• 450,000 BTU vapor capacity
• Built-in integral relief valve
• 3/8″ NPT vent port for vent piping
• 1/2″ FPT inlet and outlet connections
• Integrated pressure taps for system testing

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Specifications

Brand: Rego Products
Model: LV004303B4
Manufacturer #: LV003403B4

Gas Type:

Propane (LP)

Connection Size:

1/2″ FPT Inlet x 1/2″ FPT Outlet

Adjustment Range:

9″–13″ WC

Factory Setting:

11″ WC at 10 PSIG inlet

Vapor Capacity:

450,000 BTU

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Common Applications

• Residential propane systems
• Multi-cylinder LP installations
• Commercial propane heating systems
• Gas appliance supply regulation

Ideal for HVAC contractors, propane technicians, and gas system installers.

Product details

Part / SKU	LV003403B4

Package includes

• Rego LV003403B4 2nd Stage Propane Regulator 1/2" NPT 11" WC 450K BTU

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.