Aqualine GPLUG-400 Threaded Galvanized Plug 4 Inches

Product Description

The AQUALINE GPLUG-400 is a 4-inch threaded galvanized plug designed to cap and seal threaded pipe ends in plumbing, HVAC, and industrial piping systems. The galvanized steel construction provides corrosion resistance, making it suitable for both indoor and outdoor installations where moisture exposure is a factor. At 3.02 pounds, this is a solid, full-weight fitting built to hold up under standard pipe pressures. Licensed plumbers and pipefitters install this type of plug during pressure testing, system shutoffs, and permanent line terminations.

This plug is appropriate for residential and light commercial plumbing applications where a 4-inch threaded pipe end requires a secure, leak-resistant cap. It is commonly used in drain lines, water supply stubs, and gas-rated piping systems where the thread form and material meet the installation requirements. Galvanized fittings of this type are a standard choice on iron and steel pipe systems.

Key Features

• 4-inch threaded connection for standard pipe fitment
• Galvanized steel construction for corrosion resistance
• Heavy-duty weight at 3.02 pounds indicating solid material thickness
• Suitable for pipe capping during pressure testing and permanent terminations
• Order increment of 1 for single-unit purchasing flexibility

Compatibility

Designed as an OEM-style replacement and standard fitment for 4-inch threaded iron or steel pipe systems in plumbing and HVAC applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or local plumbing code requirements. Shut off and depressurize the supply line before threading the plug onto the pipe end. Apply appropriate thread sealant or PTFE tape to the male threads before installation to ensure a leak-free seal. Do not overtighten, as this can damage the threads on both the plug and the pipe fitting.

Technical Specifications

• Size: 4 inches
• Connection Type: Threaded
• Material: Galvanized Steel
• Weight: 3.02 pounds
• UPC: 675135959402

Standard Information

• Brand: AQUALINE
• Manufacturer Part Number: GPLUG-400