Aqualine GCPL-400 Threaded Galvanized Coupling 4 Inches

Product Description

The AQUALINE GCPL-400 is a 4-inch threaded galvanized steel coupling designed to join sections of threaded pipe in water, gas, and general plumbing distribution systems. The galvanized finish provides corrosion resistance for both indoor and outdoor installations. Internal threads on both ends accept standard tapered pipe threads, creating a secure mechanical connection without welding or specialized tooling. Licensed plumbers and pipefitters install this fitting during new construction, system extensions, and repair work where a reliable threaded union is required.

This coupling is suited for residential and light commercial plumbing, irrigation, and mechanical piping systems where 4-inch threaded pipe is specified. Its galvanized construction makes it appropriate for exposed or semi-exposed runs where bare iron fittings would be susceptible to surface rust. It is a standard catalog fitting used in water supply, drainage, and low-pressure gas distribution lines wherever local codes and system pressure ratings permit threaded galvanized connections.

Key Features

• 4-inch threaded end connections for standard tapered pipe thread engagement
• Galvanized finish resists corrosion in wet and outdoor environments
• Both-end internal threading allows straight inline pipe joining
• Suitable for water, gas, and general mechanical piping applications
• Weighs 4.63 pounds, indicating heavy-duty wall construction

Compatibility

Designed as an OEM-style replacement and standard fitting for 4-inch threaded galvanized pipe systems in residential and commercial plumbing and mechanical applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with the International Plumbing Code (IPC) or applicable local codes. Shut off and depressurize the system before removing or installing any threaded fitting. Apply thread sealant tape or pipe dope to male threads before engagement, and tighten with appropriate pipe wrenches to achieve a leak-free connection. Do not over-tighten, as this can crack fittings or distort threads.

Technical Specifications

• Size: 4 inches
• Connection Type: Threaded (both ends)
• Finish: Galvanized
• Weight: 4.63 pounds
• UPC: 675135962655

Standard Information

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