Here we have a Trident Plug 2.5" NH Chrome w/Chain 01.007.0.

Features:

• Forged and Cast Brass
• Forged - ASTM C37700
• Cast - ASTM C85700
• Hose Threads: NH
• Corrosion Resistant
• Chrome Plated (CP)
• NFPA Standards: Compliant
• Hydrostatically Tested: 600 PSI
• Rocker Lug Configuration
• Beaded Chain