Merit Brass C116-12 Brass End Cap 3/4 in Fnpt Class 125

Product Description

The MERIT BRASS C116-12 is a 3/4 inch brass pipe end cap designed to close off the end of a threaded pipe run. It uses a female NPT (FNPT) threaded connection and is rated Class 125, making it suitable for low-to-medium pressure water, gas distribution, and general plumbing applications. The cap threads directly onto male-threaded pipe ends, providing a clean, pressure-rated termination without the need for additional fittings or sealant hardware. Plumbers and pipefitters install this cap during system construction, pressure testing, or when capping an unused branch line. At 0.2 pounds, it is lightweight and easy to handle in tight spaces.

This end cap is used in residential and light commercial plumbing systems, hydronic piping, compressed air lines, and general fluid distribution where a threaded termination is required. It is appropriate for systems operating within Class 125 pressure ratings. Installers commonly use this fitting when decommissioning a branch, capping a test port, or completing a rough-in for a future connection.

Key Features

• 3/4 inch FNPT threaded connection threads directly onto standard male NPT pipe ends
• Class 125 pressure rating suitable for general plumbing and fluid distribution service
• Brass construction provides corrosion resistance in wet and humid environments
• Compact, low-profile cap design for use in confined pipe chases and utility spaces
• Lightweight at 0.2 pounds for easy single-hand installation

Compatibility

Designed as an OEM-style replacement or standard-service fitting compatible with 3/4 inch male NPT threaded pipe ends in Class 125 plumbing and fluid piping systems.

Installation Notes

Installation is performed by a licensed plumber or qualified pipefitter following applicable IPC and local plumbing code requirements. Shut off and depressurize the supply line before threading on the cap. Apply thread sealant tape or paste to the male pipe threads before installation to ensure a leak-free seal. Do not overtighten, as brass threads can be damaged by excessive torque.