Underhill International NG450 Hose Nozzle 37 Gpm 80 Psi

Product Description

The UNDERHILL INTERNATIONAL NG450 is a heavy-duty adjustable garden hose nozzle built for high-flow, high-pressure irrigation and washdown applications. It delivers up to 37 GPM at 80 psi through a 3/4-inch threaded inlet, making it suited for demanding outdoor environments. The nozzle features a ratchet adjustment mechanism that cycles through three distinct spray patterns: jet, soak, and fan. Construction uses solid machined brass, stainless steel, aluminum, and TPR rubber with no plastic components. Licensed irrigators, groundskeeping crews, and experienced DIYers are the primary installers and operators.

The NG450 is designed for professional-grade irrigation and maintenance tasks where standard residential nozzles fall short. Typical applications include golf course greens and tees, athletic field irrigation, landscape maintenance, and power washdown of equipment and hard surfaces. The high flow rate and durable all-metal build make it a practical choice for large turf areas and commercial grounds where continuous operation is required. The ratchet mechanism prevents over-tightening, supporting consistent performance during extended use sessions.

Key Features

• Three spray settings: jet, soak, and fan for versatile coverage and pressure control
• Ratchet adjustment mechanism prevents over-tightening and damage to internal components
• No plastic parts: constructed from machined brass, stainless steel, aluminum, and TPR rubber
• High-flow performance rated at 37 GPM and 80 psi
• 3/4-inch threaded inlet fits standard commercial and residential hose connections
• Suited for golf courses, athletic fields, large lawns, and equipment washdown

Compatibility

Designed for use with standard 3/4-inch threaded garden hose connections commonly found on commercial and residential irrigation systems and outdoor water supply lines.

Installation Notes

Thread the NG450 onto a 3/4-inch hose end, ensuring the connection is hand-tight before use. Shut off the water supply before attaching or removing the nozzle. The ratchet mechanism controls spray pattern; do not force the adjustment collar beyond its designed stops. Inspect the threaded inlet and rubber seals periodically for wear, especially in high-cycle commercial use.