Compact Connection. Secure Fit. Built for High-Pressure Systems.
The 3/8" MNPT x 1/8" FNPT Reducer Bushing (Part # 85.708.008) is designed to provide a reliable, leak-free thread reduction in high-pressure fluid and pressure washer applications. This precision-machined reducer allows you to safely adapt larger 3/8" male NPT outlets down to 1/8" female NPT ports, making it ideal for installing gauges, sensors, injectors, or accessories that require smaller threaded connections.
Built for professional use, this reducer bushing ensures proper thread engagement, maintains system pressure integrity, and simplifies custom plumbing or retrofit installations without compromising performance.
Built for Pressure Washer & Fluid Handling Applications
Reducer bushings play a critical role in pressure washer systems, where mismatched thread sizes are common between pumps, unloaders, gauges, and accessories. The 85.708.008 reducer bushing provides a clean, compact transition that minimizes leak points and supports consistent system pressure.
Whether you’re adding a pressure gauge, chemical injector, thermal valve, or specialty fitting, this reducer makes installation fast, secure, and professional.
Why Use a Threaded Reducer Bushing?
Using a properly sized reducer bushing helps to:
Ensure correct thread compatibility between components
Maintain system pressure without leaks or blowouts
Reduce stress on fittings and hoses
Enable clean, space-saving plumbing layouts
Improve serviceability and component replacement
This makes the reducer bushing an essential accessory for pressure washer builds, repairs, and custom system configurations.
Key Features
Thread Size Reduction – Converts 3/8" MNPT to 1/8" FNPT
Precision Machined Threads – Ensures proper fit and sealing
Compact Design – Ideal for tight spaces and clean installs
High-Pressure Ready – Suitable for pressure washer and fluid systems
Professional Grade Construction – Built for durability and long service life
Specifications
Part Number: 85.708.008
Product Type: Reducer Bushing
Male Thread: 3/8" MNPT
Female Thread: 1/8" FNPT
Application: Pressure washer systems, fluid handling, gauges, injectors, accessories
A Small Fitting That Solves Big Compatibility Problems
The 3/8" MNPT x 1/8" FNPT Reducer Bushing – Part #85.708.008 is a simple but essential component for professionals who demand clean installations and reliable performance. Whether you’re building a new system or modifying an existing one, this reducer ensures everything threads together securely—no compromises, no leaks.
