59138 AERCO Boiler and Water Heater Air filter 6"

Normal Stocking Item in Our Warehouse 

AERCO 59138 is the OEM 6″ Air Filter used in AERCO boilers and water heaters. Grounded distributor data confirms its identity, function, and pricing across multiple reputable HVAC suppliers.

🔧 Core Identity & Function

Part Number: 59138 Component: 6″ Air Filter OEM: AERCO

This filter maintains clean combustion air and protects the burner and heat‑exchanger surfaces from dust, debris, and particulate contamination. It is a direct OEM replacement, engineered to maintain proper airflow and stable combustion performance. One listing specifies it as a 6″ K&N‑style replacement filter, designed for high‑efficiency filtration.

📐 Technical Characteristics

• Size: 6″ diameter

• Type: High‑efficiency air filter (K&N replacement style)

• Function: Traps dust/dirt, maintains clean combustion air

• Construction: Durable, long‑life filter media

• Weight: ~1.99 lb 

Applications

Used in:

• AERCO commercial boilers

• AERCO commercial water heaters

• Any AERCO system requiring a 6″ combustion‑air filter

Typical replacement scenarios:

• Annual or semi‑annual preventive maintenance

• Dust‑heavy mechanical rooms

• Combustion instability due to restricted airflow

AERCO 59138 6″ Air Filter — Genuine OEM replacement air filter for AERCO boilers and water heaters. Provides high‑efficiency filtration to maintain clean combustion air, protect burner components, and ensure stable, efficient operation. Durable construction and direct‑fit design make it ideal for routine preventive maintenance.