Bridge your 4.5" hydrant outlets to 4" Storz LDH in seconds—no wrenches, no threading, no delay. The Hy-Conn HP45NH4ST is engineered for fire departments running Storz supply lines off traditional hydrants or apparatus discharges. Built for reliability and speed, this adapter eliminates time-consuming setup in high-demand scenarios.

Made from 6061-T6 aluminum and finished with corrosion-resistant coatings, it’s a heavy-duty solution for big water operations where time is critical.

Key Features

• Quick, Tool-Free Connection – Push-to-lock design for instant deployment
• Thread-to-Storz Adapter – Converts 4.5” NH hydrant thread to 4” Storz LDH
• Heavy-Duty Construction – 6061-T6 aluminum with black hard anodized + yellow Chemfilm finish
• Fireground Proven – Rated to 250 PSI for high-flow environments
• Solid Build – 14 lbs 3 oz of rugged, fire-ready performance

Specs