Flexible connection hose kfa² 1/2" x 1/2" (female/female) model 644-040-12, braided supply line

Flexible connection hose kfa² 1/2" x 1/2" (female/female) model 644-040-12 is a braided supply line designed for connecting faucets, mixers and other plumbing fixtures to both hot and cold water supplies. The hose features flexible construction that allows for easy routing in tight spaces and reduces stress on fittings. Its threaded female-to-female ends accommodate standard 1/2" threaded connections commonly used in residential and light commercial installations.

Advantages

The braided design provides mechanical protection and improved resistance to abrasion while maintaining flexibility. Threaded female-to-female connections deliver a secure, leak-resistant joint when installed with appropriate sealing tape or sealant. The hose reduces vibration transfer from pipes to fixtures and simplifies replacement or retrofit of taps and mixers without extensive rework of existing plumbing lines.

Suitable for

• Connecting washbasin and kitchen faucets to water supply lines
• Installing or replacing mixer taps in bathrooms and kitchens
• Light commercial plumbing where standard 1/2" connections are used
• Situations requiring flexible routing in confined spaces

Key specifications

• Connection type: female to female threaded 1/2"
• Construction: braided flexible hose
• Intended medium: potable hot and cold water
• Typical applications: faucets, mixers, sanitary fixtures
• Properties: vibration dampening, abrasion resistance, flexible routing

How to use

Shut off the water supply before installation. Prepare mating threads on the fixture and supply pipe by cleaning and applying appropriate thread sealant or PTFE tape if recommended for the installation. Hand-start the female threaded ends onto the male fittings, then tighten to the manufacturer’s recommended torque using a wrench; avoid over-tightening to prevent damage to threads or hose ends. After installation, slowly open the water supply and check all joints for leaks. If a leak is detected, isolate the supply and re-tighten or re-seal the connections as necessary.

Usage recommendations

Use this braided flexible hose for standard domestic and light commercial plumbing connections only. Do not use for gas, compressed air, or non-potable chemical fluids. Inspect periodically for signs of wear, kinking or corrosion at fittings and replace if any damage is observed. Ensure compatibility of thread types and follow local plumbing codes and guidelines during installation.