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Graco 257033 Inlet Filter 1 in. FNPT Crush Proof with 3/4 in. Adapter

The Graco 257033 Inlet Filter is a durable, crush-proof filter designed for high-performance airless sprayers. It ensures reliable fluid flow and pump protection.

  • 1 in. FNPT inlet with 3/4 in. adapter
  • Crush-proof stainless-steel screen (coarse mesh)
  • Ideal for GMAX II 5900 IronMan and Ultra Max II 1095 IronMan
  • Protects pump by filtering large debris

List Price: $67.25
You save: $32.01 (47.60%)
Sale Price: $35.24
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Inlet Filter Overview

The Graco 257033 Inlet Filter is a crush-proof inlet strainer designed for heavy-duty Graco airless units. It features a 1 in. FNPT connection and includes a 3/4 in. FNPT adapter for flexible hookup.

Compatible Machines

  • Graco GMAX II 5900 IronMan (Gas Airless)
  • Graco Ultra Max II 1095 IronMan (Electric Airless)

Key Specifications

Part Number 257033 (a.k.a. 257-033)
Connection 1 in. FNPT inlet, includes 3/4 in. FNPT adapter
Filter Type / Mesh Inlet strainer, coarse ~8-mesh (captures larger debris)
Construction Stainless steel, crush-proof design for job-site durability
Typical Use Large/contractor-grade Graco airless sprayers (IronMan / high-output units)

Why Use This Inlet Filter

  • Protects the pump by screening out coarse contaminants at the source.
  • Crush-proof body resists job-site impacts and deformation.
  • Stainless steel screen for longevity and easy cleaning.
  • 1 in. FNPT + 3/4 in. adapter covers common inlet sizes on larger units.

Fitment Notes

  • If your sprayer specifies an IronMan crush-proof inlet strainer, this part is typically correct.
  • For non-IronMan units, verify whether your model calls for a different inlet strainer (e.g., 189920 or other).
  • Match by thread size and owner’s manual bill of materials for absolute confirmation.

Maintenance & Care

  • Rinse the stainless-steel screen after each use; avoid crushing or kinking.
  • Inspect for dents or torn mesh—replace if damaged to protect the pump check valves and packings.
  • Use a secondary inline or manifold filter (30/60/100 mesh) sized to your coatings for best results.

Frequently Asked Questions

Yes. It’s a 1 in. FNPT inlet strainer and ships with a 3/4 in. FNPT adapter for flexible fitment on compatible sprayers.

It’s a coarse (~8-mesh) inlet strainer that catches larger debris at the suction side. Use manifold/gun filters to fine-tune for your coating (e.g., 30/60/100 mesh).

Check your sprayer’s parts list for the inlet strainer number and confirm the inlet thread (1 in. FNPT or 3/4 in. FNPT with the adapter). If your unit is an IronMan model (e.g., GMAX II 5900 IronMan or Ultra Max II 1095 IronMan), this is commonly the specified crush-proof strainer.

Replace if the screen is torn, crushed, excessively plugged, or if you notice flow starvation at the pump inlet that won’t clear with cleaning.

No. The inlet strainer is the first line of defense at the suction side. You still need the correct manifold filter and gun filter mesh for finish quality and to protect downstream components.

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