D-Series HEPA Filter 11 3/8 x 23 3/8 x 12 – 99.97% 1050 CFM (Sold Individually – Ships 2 Per Box)

D-Series 99.97% HEPA Filter – 11 3/8 x 23 3/8 x 12 (11.5" Actual) – 1050 CFM Pricing is per filter ($149.50 each). Sold 2 filters per box (minimum order quantity: 2). This commercial-grade 11 3/8 x 23 3/8 x 12 HEPA filter (actual size 11.375" x 23.375" x 11.5", DAMN Filters Part Number BHH43AGN1D) is part of our D-Series line, designed to replace common OEM HEPA filters while maintaining true 99.97% efficiency at 0.3 microns. Manufactured for consistent performance in commercial and industrial HEPA applications, this rectangular configuration is commonly used in oil mist collectors, dust collection systems, industrial air cleaning units, and commercial filtration systems requiring high-efficiency particulate removal. This D-Series HEPA filter is commonly used as a replacement for both standard and high-capacity HEPA filters depending on system design and airflow requirements. This filter is also commonly referenced as an 11.375 x 23.375 x 11.5 HEPA filter for applications using decimal-based sizing. OEM Make: DAMN Series Part Number: BHH43AGN1D Filter Type: High-Capacity 99.97% HEPA Nominal Size: 11 3/8" x 23 3/8" x 12" Exact Size: 11.375" x 23.375" x 11.5" Efficiency: 99.97% at 0.3 microns Airflow Rating: 1050 CFM Filter Media: Microglass HEPA media Frame: Metal frame construction Gasket Location: Air exit side (standard) Recommended Applications Oil mist collectors Dust collection systems Industrial air cleaning equipment Manufacturing and machining environments Commercial HVAC HEPA housings Why Choose DAMN Filters D-Series? Replacement option for common OEM HEPA part numbers True 99.97% HEPA efficiency at 0.3 microns Designed for commercial and industrial systems Consistent performance and reliable airflow Commonly used across a wide range of HEPA filtration applications OEM Cross References – 11 3/8 x 23 3/8 x 11.5 HEPA Filter Parker / Microguard Microguard HC HEPA 11-3/8 x 23-3/8 x 11-1/2 Microguard OM HEPA Koch Filter BioMAX HEPA 11-3/8 x 23-3/8 x 11-1/2 Airflow Systems / UAS Airflow Systems HEPA 11-3/8 x 23-3/8 x 11.5 UAS DustHog HEPA replacement filters Absolent Absolent HEPA replacement elements Performance Notes Actual airflow capacity and pressure drop will vary based on housing design and operating conditions. For best results, replace filters at recommended changeout pressure or sooner in high-dust environments. If you're matching an existing filter, send us the part number or pictures and we’ll confirm compatibility. DAMN Filters offers a full line of HEPA filters. HEPA Data Sheet If you don’t see your size, call (844) 605-3266 or contact us.