Dynarex Replacement RPOC-22CS 5L Concentrator Outer Casing Screws (Set of 5), Silver, EA

The Dynarex Replacement RPOC-22CS Casing Screws secure the outer cabinet panels of compatible Dynarex 5-liter oxygen concentrators. Over time, original screws can strip, corrode, loosen from vibration, or get misplaced during routine service and filter changes. Replacing worn or missing screws helps maintain cabinet stability, prevents rattling, and ensures that internal components remain properly supported.

These screws match the original thread pitch and length used in RPOC-series outer housings, allowing direct replacement without modification. They’re commonly swapped during housing repairs, back case changes, filter frame servicing, or anytime the cabinet is opened for internal maintenance.

Where they’re used

• fastening outer cabinet panels and back case sections

• securing filter frames and housing alignment points

• maintaining structural tightness to reduce vibration noise

Why replacement matters

• loose or missing screws lead to rattling and panel separation

• impacts airflow alignment and increases wear on internal components

• prevents makeshift fixes like mismatched screws that damage threads

Service notes

• install by hand first to avoid cross-threading

• use correct torque — overtightening cracks plastic housings

• replacing as a full set keeps cabinet tension uniform

What’s included

• 5 × silver replacement casing screws (OEM-equivalent)
  (no washers or clips included)

A small hardware refresh makes a measurable difference in long-term concentrator stability. For rental fleets and frequent-service units, keeping spare screw sets on hand avoids downtime and incomplete reassembly.