Radium Air Filter 0.75" ID

Radium Air Filter — 0.75" ID

This is a genuine Radium Engineering air filter designed for use on catch can breather ports, AOS vents, and other crankcase ventilation outlets where filtered air ingestion or venting is required. The 0.75" ID barb connection suits standard Radium catch can and AOS vent port sizes, providing clean filtered airflow while preventing contaminants from entering or exiting the system.

An essential component for open-loop or vented crankcase ventilation setups on naturally aspirated applications, or as a breather filter on any port requiring filtered air.

Suits: Universal — any application requiring a 0.75" ID barb air filter connection, including Radium catch cans and AOS units

Specifications:

• Inner diameter (ID): 0.75"
• Application: Catch can breather, AOS vent, crankcase ventilation outlet

Available Part Numbers:

• 18-0042 — Air Filter, 0.75" ID

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ Genuine Radium replacement air filter for catch can and AOS breather applications
• ✅ Trusted by tuners and race teams running high-power builds worldwide
• ✅ 0.75" ID barb connection — direct fitment to Radium catch can and AOS vent ports
• ✅ Prevents contaminant ingestion on open-loop crankcase ventilation systems