Orbit 57188 3/4-in Male Adapter for Orbit Valve Manifold System

Effortless manifold connections with a professional finish

The Orbit 57188 3/4-in male adapter brings a preassembled, service-friendly approach to irrigation manifolds. Instead of traditional glued PVC or threaded risers, this design uses swivel unions to create a secure, watertight seal at each manifold component, simplifying maintenance and future upgrades.

Its smart design makes common tasks easier: to add or replace a valve, simply unthread the swivel, slide it back, and install the valve. The same straightforward process applies when adding a drip filter or a pressure regulator, keeping your system flexible as needs change over time.

What this adapter helps you achieve

• Secure, watertight seals at every manifold component thanks to swivel unions.
• Quick valve upgrades or replacements by unthreading the swivel and re-seating the valve.
• Simple integration of drip filtration or pressure regulation without complicated tooling.
• Compatibility with 3/4" and 1" valves from Orbit, Hydro-Rain, and other major brands.
• Professional-looking installation when mounted on a valve box base under a standard cover.

Key technical highlights

• Spiral barb design provides easy insertion and a secure grip on HDPE poly pipe.
• HDPE poly pipe compatibility supports reliable connections with typical 3/4" lines.
• Large sealing surface on the male threads enhances O-ring contact for better sealing performance.
• Clamps and adapters are recommended to achieve a tight seal on poly pipe connections (sold separately).

For outdoor irrigation use with cold water only, mount the preassembled manifold on a valve box base for a clean, professional setup that’s easier to service in the long run.