1. Introduction
This manual provides essential instructions for the proper installation, operation, and maintenance of your Moisture Boss replacement filter element, equivalent to Hankison part number SF-07 / 5005431. Adhering to these guidelines will ensure optimal performance and longevity of the filter within your industrial compressed air system.
2. Product Overview
The Moisture Boss replacement filter element is designed as a direct equivalent for Hankison SF-07 / 5005431 filters. It is engineered to meet or exceed the performance specifications of the original equipment manufacturer (OEM) part, providing effective filtration for industrial compressed air applications.

Figure 1: Moisture Boss Hankison SF-07 5005431 Replacement Filter Element. This image displays the cylindrical filter element with its orange top cap and a separate black O-ring, ready for installation.
3. Safety Information
Always observe the following safety precautions when working with compressed air systems and replacing filter elements:
- Depressurize System: Before attempting any maintenance or installation, ensure the compressed air system is fully depressurized and locked out according to your facility's safety procedures.
- Personal Protective Equipment (PPE): Wear appropriate PPE, including safety glasses and gloves, to prevent injury.
- Read System Manuals: Refer to the compressed air system's original equipment manual for specific safety instructions and procedures related to filter housing access.
- Proper Disposal: Dispose of used filter elements according to local environmental regulations.
4. Installation
Follow these general steps for installing the replacement filter element. Specific procedures may vary based on your filter housing design.
- Prepare System: Ensure the compressed air system is completely depressurized and isolated.
- Open Filter Housing: Carefully open the filter housing according to the manufacturer's instructions. This usually involves unscrewing the bowl or releasing clamps.
- Remove Old Element: Remove the old filter element and any associated O-rings or gaskets.
- Clean Housing: Clean the inside of the filter housing, removing any debris or contaminants. Inspect the housing for damage.
- Install New O-ring: Place the new O-ring (supplied with the filter element) into its designated groove on the filter housing or element, ensuring it is properly seated and free of twists. A light coating of compatible lubricant may aid sealing.
- Insert New Element: Carefully insert the new Moisture Boss replacement filter element into the housing. Ensure it is correctly oriented and fully seated.
- Close Housing: Reassemble the filter housing, ensuring all seals are properly in place and fasteners are tightened to the manufacturer's recommended torque specifications.
- Pressurize System: Slowly re-pressurize the compressed air system and check for any leaks around the filter housing.
5. Operation
Once properly installed, the filter element operates passively to remove contaminants from the compressed air stream. Continuous monitoring of system pressure drop across the filter is recommended to determine optimal replacement intervals.
6. Maintenance
Regular replacement of the filter element is crucial for maintaining air quality and system efficiency. The frequency of replacement depends on the air quality, operating hours, and specific application requirements.
- Replacement Schedule: It is generally recommended to replace filter elements every 6 to 12 months, or sooner if a significant pressure drop is observed across the filter.
- Pressure Differential: Monitor the pressure differential gauge (if equipped) on your filter housing. An increase in pressure drop indicates that the filter element is becoming clogged and requires replacement.
- Replacement Procedure: Follow the steps outlined in the "Installation" section (Section 4) to replace the used filter element with a new one.
7. Troubleshooting
If you experience issues with your compressed air system related to filtration, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Excessive Pressure Drop | Clogged filter element | Replace filter element. |
| Contaminants in Air Downstream | Damaged or improperly installed filter element; incorrect filter grade; bypass leak. | Inspect and replace filter element; ensure proper installation and sealing; verify correct filter grade for application. |
| Air Leakage Around Housing | Damaged or improperly seated O-ring/gasket; loose housing. | Inspect and replace O-ring/gasket; tighten housing fasteners. |
8. Specifications
- Model: SF-07
- OEM Equivalent Part Number: Hankison 5005431
- Application: Industrial Compressed Air Systems
- Type: Aftermarket Replacement Filter Element
- Weight: Approximately 5 Pounds (2.27 kg)
- Performance: Guaranteed to meet or exceed OEM specifications.
9. Warranty and Support
Moisture Boss guarantees this replacement filter element to meet or exceed the performance specifications of the Hankison SF-07 / 5005431. For specific warranty details or technical support, please contact Moisture Boss directly. As a small business, Moisture Boss is committed to providing quality products and customer service.
For further assistance, visit the Moisture Boss Store on Amazon.