Graco 116521 Regulator Filter Air

Graco 116521 – Air Filter / Regulator

The Graco 116521 Regulator Filter Air is a combined air‑filter and pressure regulator unit. It delivers clean, moisture‑ and particle‑free compressed air, while regulating air pressure to maintain stable performance in pneumatic and spray systems.

Key Features & Specifications

• Inlet / Outlet Threads: 3/4″ NPSM (inlet, female) → 3/4″ NPT (outlet, female)
• Pressure Range: 5–125 psi (0.3–8.6 bar)
• Filter Element: 40‑micron polypropylene — filters out particles & moisture before air reaches downstream equipment
• Durable Construction: Built for industrial and spray‑coating environments; compatible with standard 3/4″ fittings
• OEM Quality: Genuine Graco part ensures proper fit, sealing, and performance reliability

Compatible Systems / Applications

• Graco pneumatic pumps, sprayers, or proportioning equipment requiring regulated air supply
• Air‑motor driven spray systems that list 116521 (or equivalent air‑filter/regulator) in their air‑control assemblies
• Industrial painting, coating, and fluid‑handling setups using compressed air and needing moisture/particle filtration

Note: Always verify that your equipment’s air‑line configuration uses 3/4″ inlet/outlet and requires a filter/regulator — check the parts manual or air‑control schematic prior to installation.

Why Use 116521?

• Ensures clean, contaminant‑free air — protects internal pump and spray components from wear, clogging, or damage
• Provides stable, adjustable air pressure — critical for consistent spray quality or pump performance
• Simplifies air‑supply setup by combining filtration and regulation in a single unit
• OEM‑grade reliability and compatibility — designed specifically for Graco air‑driven equipment

Frequently Asked Questions