KOCH
Frequently asked questions
Common questions about KOCH from 3G Electric.
What MERV ratings are available in the KOCH air filter line?
KOCH air filters supplied by 3G Electric include MERV 8 pleated filters, MERV 11 rigid cell filters, and MERV 14 minipleat (V-bank) filters. MERV 8 pleated filters use synthetic media in a beverage board frame and are intended for general HVAC particulate capture. MERV 11 rigid cell filters use fiberglass media in a galvanized steel frame and are self-supporting for higher-velocity applications. MERV 14 minipleat filters use fiberglass media with either a plastic or galvanized steel frame and are specified for high-efficiency particulate removal. The MERV rating is determined by the filter's tested performance under ASHRAE 52.2, and selection should be based on the target efficiency and the pressure drop the system can accommodate.
What is the difference between KOCH minipleat and rigid cell filters?
KOCH minipleat filters, also called V-bank filters, use closely spaced pleats of fiberglass media arranged in a V configuration to increase media area within a given face size. They are available in MERV 14 and use either a plastic or galvanized steel frame, with single-header or no-header options. KOCH rigid cell filters use fiberglass media in a galvanized steel frame and are rated MERV 11. Rigid cell construction provides a self-supporting filter that resists deformation under high airflow, while minipleat construction offers higher media area and efficiency in a similar footprint. The choice depends on the required MERV rating, the available depth, and the holding frame or track system in the air handler.
How do I select the correct KOCH filter for my HVAC system?
Selection requires four pieces of information: the nominal face dimensions and depth of the existing filter, the required MERV rating, the frame or header material compatible with the filter rack, and whether a gasket or header is needed for sealing. KOCH filters are specified by nominal size (for example, 24 x 24 x 12 inches), media material (fiberglass or synthetic), frame material (galvanized steel, plastic, or beverage board), and header configuration (single-header, no header, or gasket location). 3G Electric lists these attributes for each KOCH part number, so buyers can match replacements to the existing filter schedule. If the filter rack uses a track system, confirm the header type before ordering.
Are KOCH MERV 14 minipleat filters available with different frame materials?
Yes. KOCH MERV 14 minipleat filters are available with either a plastic frame or a galvanized steel frame. For example, part number 111-501-103 uses a plastic frame with a single header, while part number 120-720-001 uses a galvanized steel frame with a single header. Part number 120-730-001 uses a galvanized steel frame with no header. The frame material affects structural rigidity, weight, and compatibility with certain holding frames. Plastic frames are typically used where corrosion resistance or lighter weight is preferred, while galvanized steel frames are used where higher mechanical strength is required. Both configurations use fiberglass media and are rated MERV 14.
What sizes of KOCH pleated air filters does 3G Electric supply?
3G Electric supplies KOCH MERV 8 pleated air filters in several nominal sizes, including 24 x 24 x 4 inches (part number 102-701-031), 24 x 16 x 2 inches (part number 102-700-017), 24 x 24 x 2 inches (part number 102-700-022), and 25 x 16 x 2 inches (part number 102-701-017). All use synthetic media and a beverage board frame. These are general-use filters for commercial and industrial HVAC applications, capturing dust, pollen, and mold spores. Because nominal sizes vary by filter rack, buyers should verify the actual face dimensions and depth before ordering. 3G Electric lists the exact nominal dimensions for each KOCH part number in the catalog.
Can KOCH air filters be used in industrial air filtration applications?
Yes. KOCH air filters are used in both commercial HVAC and industrial air filtration. The MERV 14 minipleat filters, such as part numbers 111-501-103, 120-720-001, and 120-730-001, are specified for industrial air filtration where higher particulate removal efficiency is required. The MERV 11 rigid cell filter, part number 110-734-001, is used in commercial and industrial HVAC systems that need a self-supporting filter. MERV 8 pleated filters are used for general air filtration in commercial and industrial settings. The appropriate filter depends on the contaminant load, the required efficiency, and the mechanical constraints of the air handling system.
