Donaldson HPK04 Series High Pressure Cartridge Filters
The HPK04 high pressure filter series is made of ductile iron and steel for strength and durability. Machined by-pass valves are case-hardened at critical points to provide maximum strength and reliability. Reverse flow by-pass valve allows bi-directional flow through the filter head, and filter change out is simplified with standard housing drain plug. Meets HF3 specification.