Holyoke 5/8″ Flare Plug Brass Gas Line Cap LP Propane Natural HVAC Fitting

SKU: MFG# 57-10

Weight	1.5 lbs
Dimensions	9 × 7 × 2 in

$3.38

In stock — available to order.

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Quantity	Unit price	Saving
1–4	$3.38	0%
5–9	$3.21	5%
10+	$3.04	10%

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Holyoke 5/8" Flare Plug Brass Gas Line Cap LP Propane Natural HVAC Fitting

Specifications & product details

Overview

Holyoke 5/8" Flare Plug – Brass Gas Line Cap for LP, Propane, and Natural Gas SystemsThe Holyoke 5/8" Flare Plug is a high-quality, machined brass cap designed to terminate or seal gas lines equipped with standard flare fittings. Ideal for LP gas, propane, or natural gas systems, this plug ensures a reliable, leak-resistant closure for unused flare outlets.

Its hex head design allows for quick installation and removal using a wrench, making it suitable for both temporary and permanent sealing in HVAC systems, propane storage, and DOT cylinder maintenance applications.

Key Features

5/8" Male Flare Plug for sealing flare-style gas connectionsDurable, corrosion-resistant brass construction
Compatible with LP, propane, and natural gas systems
Ideal for gas line maintenance, DOT tanks, HVAC systems
Model: PLUG FL 5/8 P2-10 | MFG# 57-10 | DLP#: 5K540Pair with other Holyoke flare fittings or gas regulators for a complete professional-grade installation.

Product details

Part / SKU	MFG# 57-10

Package includes

Holyoke 5/8" Flare Plug Brass Gas Line Cap LP Propane Natural HVAC Fitting

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

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