Capitol N-300X4 3″ x 4″ Extra Heavy Black Steel Pipe Nipple Fitting NPT Gas

Name: Capitol N-300X4 3" x 4" Extra Heavy Black Steel Pipe Nipple Fitting NPT Gas
SKU: N-300X4
Price: 101.99 USD
Availability: InStock

SKU: N-300X4

$101.99

Only 2 left in stock

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$101.99	0%
5–9	$96.89	5%
10+	$91.79	10%

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Available to order: 2.

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Product Description

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

Compare connection sizes and material ratings separately when building a steel or iron piping order.

Product type	Steel and iron pipe fittings
Part / SKU	N-300X4

What to check before ordering

Identify each connection and distinguish pipe schedule or weight from forged-fitting class.
Check length, end configuration and the applicable pressure-temperature and service ratings.
Use approved joint preparation, followed by the required checks by qualified gas personnel.

Service reminder: Pipe schedule and fitting class describe different characteristics. Neither is a stand-alone pressure rating for an entire gas system.

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

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Overview

Upgrade your industrial gas system with the Capitol N-300X4 Extra Heavy Black Steel Pipe Nipple, 3” x 4” (NPT Male x NPT Male).This extra-heavy-duty pipe nipple is engineered for propane, LP gas, and natural gas systems, as well as industrial plumbing applications where high strength and reliability are critical. Made from black steel with precision-cut NPT threads, it ensures a secure, leak-resistant connection in demanding environments.Key Features & Benefits:Capitol quality: trusted manufacturer of industrial-grade fittings3” NPT Male x 3” NPT Male connectionHeavy-duty black steel construction for durability and long service lifeIdeal for propane bulk plants, LP gas distribution, and high-pressure natural gas applicationsPrecision threading ensures reliable, tight connectionsCompatible with regulators, shut-off valves, flow indicators, and other propane/natural gas componentsPerfect for professional installers, bulk plant operators, and industrial maintenance teams who require rugged and reliable gas fittings.

Product details

Part / SKU	N-300X4

Package includes

Capitol N-300X4 3" x 4" Extra Heavy Black Steel Pipe Nipple Fitting NPT Gas

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