Direct Cross-Reference: Seamlessly replaces Marathon E407 and E407M2 without needing mounting modifications

For contractors seeking a universal low pressure control

allowing it to function reliably in gravity-fed or low-pressure systems

Rugged Construction: The rough bronze metallurgy is specifically chosen for its resistance to dezincification and corrosion in pressurized water systems

For service technicians performing seasonal maintenance or emergency repairs

Carrier 40QA500067 Filter 340793-762 Direct Cross-Reference: Seamlessly replaces MarathonThe Carrier 40QA500067 Filter is an essential OEM replacement component designed for high velocity and specialized airflow management within Carrier 40QA series fan coil units. As a critical part of the HVAC filtration system, this filter is engineered to maintain low static pressure while protecting the evaporator coil from particulate buildup, ensuring the system operates within its designed CFM specifications. Unlike generic alternatives, this