OA Inlet Screen

Oa Inlet Screen

This page lists all 2 Oa Inlet Screen replacement filters available from Metal Air Filters — precision-manufactured washable aluminum mesh filters engineered as direct OEM replacements for Carrier commercial HVAC equipment. All filters on this page are HI Series and HIA Series products manufactured by American Metal Filter Company (AMFCO) with .030" extruded aluminum alloy frames, corrugated aluminum mesh media, UL 900 Class 1 certification, and a 275°F maximum operating temperature rating.

Each filter is a permanent washable replacement — clean and reuse for 5–10 years rather than replacing disposable filters every 30–90 days. AMFCO’s aluminum mesh construction provides 43% average dust arrestance per ASHRAE 52.1, making these filters ideal pre-filters in multi-stage Carrier commercial HVAC systems protecting downstream MERV 8 through HEPA filtration stages in rooftop units, air handlers, and split systems.

Commercial & Industrial Applications

Carrier commercial HVAC equipment is deployed across a wide range of commercial, institutional, and industrial building types. The following applications represent the primary use cases for Oa Inlet Screen permanent washable aluminum mesh filters.

Educational Institutions & School Facilities

Schools, colleges, and universities with Carrier commercial HVAC systems require reliable filtration to protect students and staff from airborne particulates while maintaining energy-efficient operation. The HIA102024-1-50HJ540610 compatible filter provides 5-10 year service life in these applications, dramatically reducing maintenance labor costs compared to monthly disposable filter replacement across multiple rooftop units. The washable design eliminates recurring filter purchase expenses that burden school budgets, while the 275°F rating handles rooftop equipment exposed to extreme summer temperatures. Facility managers benefit from extended cleaning intervals (30-90 days) that reduce maintenance crew workload during the busy school year while protecting indoor air quality critical for student learning environments.

Hospitality & Hotel Facilities

Hotels, resorts, and hospitality facilities with Carrier HVAC systems require 24/7 reliable filtration to maintain guest comfort and protect expensive HVAC investments. The HIA102024-1-50HJ540610’s 43% dust arrestance captures large particulates before they reach expensive secondary filtration, extending the life of MERV 8-11 pleated filters and reducing total filtration costs. The permanent aluminum construction withstands continuous operation typical of hospitality facilities where HVAC systems never shut down. The washable design allows cleaning during off-peak hours without inventory costs or supply chain delays common with disposable filters, ensuring uninterrupted guest comfort.

Retail Spaces & Shopping Centers

Commercial retail facilities and shopping centers with Carrier HVAC systems require reliable filtration to maintain customer comfort and protect merchandise from dust accumulation. The HIA102024-1-50HJ540610’s permanent construction protects against particulate accumulation while maintaining the airflow required for climate control in high-traffic retail environments. The filter’s low initial pressure drop (0.08-0.12″ w.g.) minimizes energy consumption during extended operating hours (12-16 hours daily) common in retail spaces. The washable design eliminates recurring filter procurement while allowing immediate response to indoor air quality concerns without supply chain dependencies.

Office Buildings & Corporate Facilities

Modern office buildings with Carrier commercial HVAC systems benefit from the HIA102024-1-50HJ540610’s precision compatibility and washable performance. The filter’s low initial pressure drop minimizes energy consumption while protecting downstream coils and components from particulate accumulation. Office facility managers appreciate the 5-10 year service life that eliminates recurring budgeting for filter replacements, while the UL 900 Class 1 certification ensures compliance with commercial building codes for fire safety. The washable design allows immediate response to indoor air quality concerns without waiting for replacement filter procurement, maintaining employee productivity and comfort.

Healthcare & Medical Facilities

Hospitals, medical centers, and healthcare facilities with Carrier commercial systems require reliable pre-filtration to protect sensitive populations and expensive diagnostic equipment. The HIA102024-1-50HJ540610’s permanent aluminum construction eliminates concerns about filter media shedding that can occur with degraded disposable filters. The washable design allows facility staff to maintain consistent filtration performance without supply chain dependencies—critical for facilities requiring continuous HVAC operation. The 20x24x1 size is common in Carrier rooftop units and air handlers serving buildings where indoor air quality directly impacts occupant health and medical outcomes.

Light Industrial & Manufacturing Facilities

Light industrial environments with Carrier commercial HVAC systems face elevated particulate loading from manufacturing processes and outdoor air intake. The HIA102024-1-50HJ540610’s 5-ply aluminum mesh construction captures large particulates, significantly extending the life of expensive final-stage filters. The 81 g/sq ft dust holding capacity provides 30-90 day cleaning intervals even in dusty environments, while the washable design allows on-site cleaning without production interruption. The 275°F rating handles industrial process heat and ambient temperatures that would rapidly degrade disposable filters in rooftop applications.

Frequently Asked Questions

Is this compatible with Carrier 50HJ540610 equipment?

Yes, this filter is precision-manufactured to match the exact specifications of the Carrier 50HJ540610 filter (actual dimensions 19.5 x 23.5 x 0.875), ensuring a perfect fit in standard Carrier commercial equipment.

What is the filtration efficiency?

This 5-ply corrugated aluminum mesh filter provides approximately 43% average dust arrestance, making it an ideal pre-filter for commercial Carrier systems.

How do I clean this filter?

Remove and spray with water using a garden hose or pressure washer (up to 1500 PSI). Use an aluminum-safe detergent for heavy accumulation.

Is it UL rated?

Yes, it is UL 900 Class 1 rated, which means it meets strict fire safety standards for commercial and industrial buildings.

What is the maximum operating temperature?

The all-aluminum construction allows for continuous operation in temperatures up to 275°F (135°C).

Does it have drainage holes?

Yes, it features three corner drain holes to ensure moisture is completely removed after washing.

Is this a permanent filter?

Yes, this is a permanent metal mesh filter designed to be washed and reused rather than discarded, providing 5 to 10 years of service.

Where is this filter manufactured?

This filter is 100% manufactured in the United States using premium domestic aluminum.

Why is the actual size smaller than 20x24x1?

Industry standard nominal sizing (20x24x1) allows for a proper fit into standard tracks. The exact actual dimensions are 19.5″ x 23.5″ x 0.875″.

Can this replace disposable filters?

Yes, if your Carrier system currently uses 20x24x1 disposable filters, this permanent aluminum filter will fit in the same filter track.