Product Overview DP® 40 extended surface, pleated air filters offer low pressure drop and high dust-holding capacity. They are suitable for use in virtually any air handling system, particularly those that require high performance, durability, and extended service life. This includes filter banks, central station air handlers, rooftop units, side access housings, as final filters for systems with MERV 8 or MERV-A 8-A requirements or pre-filters in multi-stage systems. The filter design utilizes a consistent pleat shape on predetermined centers, allowing dirt to collect evenly over the entire surface of the media. The two-piece frame provides rigidity with double-wall depths around the outer edge. The filter also features a die-cut pattern, which results in 50% more contact points between the media pack and the frame. 100% thermally bonded synthetic, proprietary media provides extra protection against damage from moisture, delaminating, excessive buckling, collapsing, warping, and bending, which can often cause alternative filter products to prematurely fail. All DP® 40 filters exceed ASHRAE Standard 52.2 air cleaning specifications for filters installed upstream of cooling coils. Filters may be installed with the pleats either vertical (preferred) or horizontal. Available with depths of 1-, 2- or 4-in. For filters with 6-in depths, see the DP® Max. Markets: • Commercial and Industrial HVAC • Process Air Filtration Applications: • Air handling systems • Rooftop units • Side access housings • Built-up filter banks • Pre-filters in single and multi-stage systems Benefits: • Exceeds American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 52.2 air cleaning specifications for filters installed upstream of cooling coils • 100% thermally bonded synthetic, proprietary media resists moisture, delaminating, excessive buckling, collapsing, warping, and bending • Available in a wide range of sizes and air flow rates to meet the unique requirements of customers’ systems • Low initial resistance facilitates efficiency and energy savings • Resistant to mold and microbial growth • Performs to MERV 8 and MERV-A 8-A before and after a conditioning step Features: • Filtration efficiency: MERV 8, MERV-A 8-A • Nominal depths (in.): 1, 2, 4 • Maximum operating temperatures: 225 °F (107 °C) • Material of construction: Heavy-duty, moisture-resistant beverage board frame; rust-resistant, expanded metal support grid made of galvanized steel • Classified per UL Standard 900 for flammability