Rigid Pack Box Air Filter – Durable Metal Frame for VAV Systems

Key Benefits

Technical Specifications

Designed for Variable Air Volume (VAV) Systems

VAV systems can subject HVAC filters to changing airflow velocities and fluctuating pressure conditions. The Rigid Pack Box Filter uses a rigid metal enclosure and stabilized radial V-pleat design to help maintain the media geometry during changing operating conditions.

This construction is intended for applications where maintaining consistent filter structure and airflow distribution is important, including commercial VAV systems, healthcare HVAC, industrial air-handling units, and other turbulent-airflow environments.

Radial V-Pleat & Expanded Metal Mesh Design

Aerodynamic Radial V-Pleats

The radial V-pleat configuration is designed to distribute incoming airflow across the filtration media while maintaining an efficient use of the available media surface area.

Die-Cut Pleat Stabilizers

Die-cut pleat stabilizers help maintain pleat geometry and reduce the potential for pleat collapse or convergence under variable airflow conditions.

Expanded Metal Mesh Separator

The expanded metal mesh separator helps maintain consistent spacing between pleats and supports uniform airflow distribution across the media pack.

Choosing the Right MERV Rating

Select the appropriate MERV efficiency based on the required particulate removal, facility requirements, HVAC system design, airflow, and allowable pressure drop.

Rigid Frame Material Options

Replacement for Pocket & Box-Type Filters

The AccuraFil Rigid Pack Box Filter is designed as a replacement option for compatible conventional pocket, bag, and standard box-type HVAC filters. Its rigid construction provides a structurally stable alternative where variable airflow or demanding operating conditions make rigid filter construction desirable.

Before replacing an existing filter, verify the actual filter dimensions, MERV rating, frame design, airflow requirements, and compatibility with the existing HVAC housing or filter rack.

Commercial & Industrial HVAC Applications

AccuraFil Rigid Pack Box Filters are designed for commercial, institutional, healthcare, pharmaceutical, data center, and industrial HVAC applications, including:

• Variable air volume (VAV) HVAC systems
• Turbulent and fluctuating airflow environments
• Commercial office buildings
• Hospitals and healthcare facilities
• Pharmaceutical manufacturing facilities
• Laboratories and controlled environments
• Data centers
• Industrial air-handling units
• Pocket and box-filter replacement applications

Reliable Performance in High-Demand Environments

The rigid enclosure, stabilized radial V-pleat design, and high-density synthetic media make this filter particularly suitable for HVAC applications where airflow conditions vary and dependable filter structure is important.

VAV Commercial Buildings

The rigid construction is designed to maintain filter geometry across variable airflow conditions in commercial VAV HVAC systems.

Hospitals & Healthcare

Higher-efficiency MERV configurations provide increased particulate filtration for compatible healthcare HVAC applications where reliable filter performance is important.

Pharmaceutical & Controlled Environments

MERV 14 and MERV 15 configurations support demanding pharmaceutical, laboratory, and controlled-environment HVAC applications requiring increased particulate filtration.

Data Centers

High dust-holding synthetic media and rigid construction support demanding HVAC systems operating continuously to protect sensitive equipment environments.

Industrial Facilities

Water-resistant, non-shedding synthetic media and metal frame options provide a durable filtration solution for demanding industrial HVAC environments.

High-Dust-Holding Performance

How to Select the Right Rigid Pack Box Filter

1. 1

   Confirm the HVAC Operating Conditions

   Determine whether the system operates with variable air volume, fluctuating airflow, or turbulent conditions where rigid filter construction is appropriate.

2. 2

   Select the Required MERV Rating

   Choose MERV 11, MERV 13, MERV 14, or MERV 15 based on the required filtration efficiency and facility application.

3. 3

   Select the Frame Material

   Choose GI for standard applications, stainless steel for corrosive or humid environments, or aluminum where a non-ferrous or weight-sensitive frame is preferred.

4. 4

   Verify Dimensions and Pressure-Drop Compatibility

   Confirm the actual filter dimensions and make sure the HVAC fan capacity supports the specified final pressure drop of 1.50" w.g. before ordering.

Rigid Pack Box Filter vs. Pocket Filters

Conventional pocket or bag filters use flexible media pockets that can change shape as airflow conditions vary. The Rigid Pack Box Filter uses a rigid metal enclosure with stabilized radial V-pleats to provide a structurally stable filter configuration.

This design is particularly relevant to VAV systems and turbulent airflow applications where maintaining consistent media geometry and airflow distribution is important. Filter selection should be based on the system's operating conditions, dimensions, required MERV rating, and filter housing configuration.

Frequently Asked Questions