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Graco 238429 100 Mesh Filter/Strainer (Multi-Pack)

The Graco 238429 Q Strainer 100 Mesh Multi-Pack ensures clean fluid flow and protects pumps from debris in Graco lubrication and fluid systems.

  • Fine 100-mesh stainless screen for precise filtration
  • Ideal for lighter oils and fluids
  • Multi-pack for easy maintenance and replacements
  • Compatible with Graco MSA, Modu-Flo, MLS, and Fire-Ball systems

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Fine Filtration for Graco Lubrication Systems (100-Mesh)

Compatible Machines

The Graco 238429 Q Strainer 100 Mesh Multi-Pack is used across Graco lubrication/fluid systems. Always verify with your model’s parts list.

  • Graco MSA-10 & MSA-100 metering pump systems
  • Graco Modu-Flo pumps and centralized lubrication systems
  • Graco MLS series single-line lubrication systems
  • Graco Fire-Ball lubrication pump family (select models using in-line “Q” strainers)

About the Product

The Graco 238429 Q Strainer 100 Mesh Multi-Pack provides fine filtration (100 mesh) to help protect pumps, valves, and injectors from debris that can reduce flow or cause premature wear. The multi-pack format makes proactive maintenance easy—swap in a fresh screen and keep your system running smoothly.

At-a-Glance Specifications

Attribute Value
Part Number 238429
Type Q Strainer / In-line screen
Mesh 100 (fine filtration)
Pack Multi-Pack
UPC 00633955703353
Approx. Package Size Length ~6.9 in, Width ~5 in, Height ~1 in

Why Choose 100-Mesh Filtration

  • Protects components — helps keep contaminants out of pumps, valves, and injectors.
  • Consistent flow — minimizes clog-related pressure drops for smoother operation.
  • Maintenance-friendly — multi-pack lets you replace screens on a set schedule.
  • Right for thinner fluids — 100-mesh suits oils and lighter fluids; use coarser mesh for thicker materials.

Use & Care Tips

  1. Inspect strainers regularly; replace at the first signs of loading or restricted flow.
  2. Install with the screen fully seated and oriented according to your system manual.
  3. Match mesh size to fluid viscosity and cleanliness requirements.
  4. After major jobs or fluid changes, fit a fresh screen to reduce start-up issues.

Frequently Asked Questions

Mesh indicates screen fineness. 100 mesh is a fine screen (about 100 openings per linear inch) suitable for lighter oils and cleaner fluids requiring tighter filtration.

This part is commonly used in Graco lubrication/industrial fluid systems. Many paint sprayers use dedicated gun or manifold filters. Check your sprayer’s parts book to confirm whether it specifies the 238429 Q Strainer or a different filter element.

Replacement intervals depend on fluid cleanliness and duty cycle. As a rule of thumb, inspect weekly in heavy use and replace at the first sign of clogging, pressure fluctuation, or reduced flow.

Look up your equipment’s manual/parts list and verify the strainer part number. You can search by model or part number on Graco’s official Find Manuals & Parts page.

Both are in-line screens. “Q” strainers refer to a Graco in-line screen style used within certain pump/line assemblies; “Y” strainers are a pipe-style body with a side-port screen element. Use the type specified by your system.

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