481504 Pleated Air Filter MERV 11 Premium industrial air filtration solution for commercial HVAC systems with enhanced dust capture efficiency. ✔ Direct replacement for major HVAC brands ✔ 30% higher dust capacity than standard filters ✔ Available for OEM/ODM customization Product Advantages Key Features Precision 18×20×2 in (450×500×44mm) dimensions MERV 11 efficiency (85-95% @ 1-3μm) Reinforced aluminum frame with gasket High-flow synthetic media Your Benefits Reduces HVAC energy costs by 12-18% Extends equipment service intervals Improves indoor air quality compliance Lowers total maintenance costs Technical Specifications Parameter Specification Dimensions (Nominal) 18 × 20 × 2 inches Dimensions (Metric) 450 × 500 × 44 mm MERV Rating 11 (ASHRAE 52.2 Standard) Maximum Airflow 1,200 CFM at 0.5" w.g. Frame Material 1.2mm galvanized aluminum Minimum Order Quantity 20 pieces (bulk discounts available) Industry Professionals Recommend ★★★★★ "After switching to these filters, our hospital's HVAC maintenance costs decreased by 22% while meeting strict air quality standards." Midwest Medical Supplies Hospital Equipment Distributor ★★★★★ "The 481504 filters last 30% longer than our previous supplier's equivalent, reducing our warehouse maintenance frequency significantly." Global HVAC Supplies LLC Wholesale Distributor ★★★★★ "Custom branded filters helped us establish our private label business. Quality consistency across 10,000+ units delivered." Industrial Filter Distributors B2B Filter Specialist Common Questions What's the lead time for bulk orders? Standard orders ship within 7-10 business days. For quantities over 500 units, please contact us for expedited production options. Is custom sizing available? Yes, we offer custom filter dimensions with MOQ of 100 pieces. Our engineering team can advise on optimal pleat configurations. Do you provide test reports? Complete MERV 11 certification and airflow test reports are available upon request for qualified buyers. Contact Our Team Ready to discuss your filtration needs?   Phone/WhatsApp +86 18965520297   Email Sales@parts-machining.com   Manufacturer CHINA EVERLASTING PARTS CO., LIMITED Professional High Quality Filters Manufacturer Since 2008 | ISO 9001:2015 Certified