All Makes All Models Parts | GF4 | Gano Coolant Filter; Brass; Fits 1-1/2" To 1-3/4" I.D. Hose | Classic Industries
Coolant Filter & Inspection System | Vehicle Enhancement Labs
Customer didn't think the stock coolant filter was sufficient so they added their own. It's filtering coolant entering the heater core. : r/Justrolledintotheshop
An Inline Coolant Filter Will Catch What You Don't See – Beyond the Checkered Flag