REGO LV4403SR4VI 5 lb Regulator 1/2″ NPT Vent Over Inlet | P99 Compatible

SKU: LV4403SR4VI

Weight	5 lbs
Dimensions	8 × 8 × 8 in

$155.32

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Quantity	Unit price	Saving
1–4	$155.32	0%
5–9	$147.55	5%
10+	$139.79	10%

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REGO LV4403SR4VI 5 lb Regulator 1/2" NPT Vent Over Inlet | P99 Compatible

Specifications & product details

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

Start your regulator selection at the tank: the first stage supplies the intermediate pressure needed by a separate downstream regulator.

Product type	First-stage LP gas regulators
Part / SKU	LV4403SR4VI
Inlet connection	1/2 in. female NPT
Outlet connection	1/2 in. female NPT
Factory delivery	5 PSIG
Bonnet vent	Over inlet
Propane vapor capacity	2,500,000 BTU/hr; rating conditions: inlet 20 PSI above setting, delivery 20% below setting
Adjustment range	1–5 PSIG

What to check before ordering

Identify the required intermediate outlet pressure and the inlet conditions for this stage.
Compare the connected appliance load with the capacity published for the same inlet and delivery conditions.
Ask your gas installer to confirm the vent position, weather protection and commissioning checks before installation.

Service reminder: Include vent condition in routine service. Debris, insects, snow or water can obstruct it; any vent extension must follow the model instructions. Replace a regulator that has been submerged.

Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.

Product help & manufacturer resources

RegO regulator installation and service guidance

Explore this product guide · Shop this product group · Ask Regions Supply about this part

Overview

REGO LV4403SR4VI 5 lb Regulator – 1/2″ NPT, Vent Over Inlet (P99 Compatible)

The REGO LV4403SR4VI is a 5 lb low-pressure regulator designed for use in commercial and industrial gas systems, commonly installed downstream of REGO P99 regulators. This model provides controlled pressure reduction while supporting system safety and compliance.

Featuring 1/2″ NPT inlet and outlet connections and a vent-over-inlet design, the LV4403SR4VI is ideal for installations where controlled venting and compact sizing are required. Its rugged cast-metal construction ensures long service life in demanding environments.

Key

Specifications

Model: LV4403SR4VI
Outlet Pressure: 5 lb
Connection Size: 1/2″ NPT Inlet & Outlet
Vent Style: Vent Over Inlet
Construction: Heavy-duty cast metal
Compatibility: Designed for use with P99 regulators

Common

Applications

Downstream regulation for P99 gas regulators
Commercial and industrial gas trains
Agriculture, dryers, boilers, furnaces, and asphalt plants
LP Gas and Natural Gas systems

Brand new, unused, and ready for installation.
Always verify system design and code requirements prior to installation.

Product details

Part / SKU	LV4403SR4VI

Package includes

REGO LV4403SR4VI 5 lb Regulator 1/2" NPT Vent Over Inlet | P99 Compatible

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

Compatibility & part-number help

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Shipping & availability

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