Move big water—fast. The Hy-Conn HP4NH4NH delivers a secure, threadless connection between 4” NH hydrants or pump discharges and 4” NH supply lines. Designed for departments that demand high-flow setups without the hassle of threading under pressure.

Constructed from heavy-duty 6061-T6 anodized aluminum and built for rugged field use, this coupling connects in seconds to keep water moving when it matters most.

Key Features

• Quick Connection – No threading or tools—just push, lock, and flow
• Heavy-Duty Construction – Precision-machined 6061-T6 aluminum with hard anodized + Chemfilm coating
• NFPA-Compatible Threads – Inlet: 4" NH (female) / Outlet: 4" NH (male)
• Rated to 250 PSI – Reliable performance under high water volume
• Solid Build – Weighs 10 lbs 11 oz for maximum durability on large diameter setups
• Specs