This is a lead-free brass quarter-turn ball valve, specifically a 3/4" Female NPT (FIP/FPT) × 1/2" PEX barb.

Key features that identify it:

• Brass body with chrome-plated ball inside (full-port or near full-port)
• Red/orange lever handle for 90° on/off operation
• One end is female pipe thread (NPT, tapered internal threads)
• The other end is a barbed fitting with multiple ridges for inserting into 1/2" PEX tubing (or a rubber/PVC hose) and securing with a crimp ring, cinch clamp, or hose clamp