B K Mueller 511-201HN Galvanized Coupling with Stop 1/4 in

Product Description

The B K/MUELLER INDS(IMPORT) 511-201HN is a 1/4-inch galvanized coupling with an internal stop, designed to join two sections of pipe while preventing over-insertion. The integrated stop positions pipe ends at the correct depth for a consistent, secure connection. This type of fitting is a standard component in plumbing and gas distribution systems where corrosion resistance and durability are required. Licensed plumbers and pipefitters install this fitting in both residential and light commercial applications.

This galvanized coupling with stop is suited for use in threaded pipe systems where a mechanical stop is needed to ensure uniform pipe seating. The 1/4-inch size fits standard quarter-inch threaded pipe. It is commonly used in plumbing supply lines, gas piping, and related mechanical systems requiring a reliable, code-compliant threaded connection. Sold in a package of 10 units, making it practical for service calls and small-scale installations.

Key Features

• Integrated internal stop ensures consistent pipe seating depth
• Galvanized finish provides corrosion resistance in damp or exposed environments
• 1/4-inch threaded connection for standard pipe sizing
• Sold in a package of 10 units for jobsite convenience
• Compact and lightweight at 0.84 pounds per package

Compatibility

Designed as an OEM-style replacement fitting for standard 1/4-inch threaded pipe systems in residential and light commercial plumbing and gas distribution applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, including the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC) where relevant. Shut off the water or gas supply and depressurize the line before beginning any fitting work. Apply appropriate thread sealant or PTFE tape to threaded connections and tighten to hand-tight plus the manufacturer-recommended number of turns using a pipe wrench. Do not over-tighten, as this can crack or deform the fitting.