Computer cooling system part Koolance INS-FLTR03 stainless steel filter 32×23.3×23.3 mm

Koolance INS-FLTR03 stainless steel filter is an inline coolant filter designed for liquid-cooled computer systems. The compact metal housing measures 32 × 23.3 × 23.3 mm and contains two reusable stainless steel mesh elements with nominal hole sizes of 0.42 mm² and 0.27 mm². G 1/4 BSPP ports are provided on both ends—one male and one female—for direct installation into the inlet of a water block, pump, or heat exchanger. The body unscrews for easy access to the mesh elements, allowing cleaning or replacement without removing the entire loop.

Advantages

The filter prevents particulate debris from reaching pumps, blocks, and other flow-sensitive components, reducing the risk of damage and maintaining coolant circulation. Durable materials—nickel-plated brass fittings and stainless steel mesh—offer corrosion resistance and long service life in typical PC cooling environments. The inclusion of two mesh sizes provides flexibility for trapping different particle sizes while preserving flow performance. Its compact inline form factor enables straightforward integration into existing coolant loops with standard G 1/4 BSPP fittings.

Suitable for

• Inline installation ahead of pumps to protect pump impellers from debris
• Installation at water block or heat exchanger inlets to prevent clogging
• Use as a spare or replacement filter in Koolance-compatible cooling assemblies
• Maintenance setups where reusable, cleanable mesh is preferred over disposable filters

Key specifications

• Material: nickel-plated brass fittings and stainless steel mesh
• Filter mesh sizes: approximately 0.42 mm² and 0.27 mm² hole patterns
• Connection type: G 1/4 BSPP (one male, one female)
• Dimensions: 32 mm (width) × 23.3 mm (depth) × 23.3 mm (height)
• Design: inline metal housing with unscrewable body for access to mesh elements

How to use

Install the filter inline in the coolant loop using the G 1/4 BSPP connections; orient the filter so that flow enters the side designated for inlet use before the protected component (for example, ahead of the pump or at the inlet of a water block). Tighten fittings to a secure, leak-free torque appropriate for standard G 1/4 fittings, using compatible thread seal if required. Periodically inspect the mesh elements through routine system maintenance and unscrew the body to remove and clean the filters if particulate buildup is observed. Replace mesh elements if damage or irreversible clogging occurs.

Usage recommendations

For optimal performance, install the filter upstream of sensitive components such as pumps and fine-pitch water blocks, and schedule regular maintenance intervals based on coolant type and system usage. Use compatible thread sealants and avoid overtightening to prevent damage to fittings and threads.