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The AIR FLOW PRODUCTS EC07 is a tee end cap designed to close off the open end of a tee fitting in a duct or piping distribution system. Sized at 7 inches, this end cap provides a clean, secure termination point that prevents airflow loss, contamination ingress, or pressure bleed at unused tee branches. It is a standard installation component used by HVAC technicians and sheet metal mechanics during duct system assembly, modification, or service work where a branch outlet requires capping.
The EC07 is suited for use in residential and light commercial HVAC duct systems where 7-inch tee fittings are present. It is commonly installed when a tee branch is temporarily or permanently taken out of service, or during system balancing when airflow to a particular zone is discontinued. The 88 designation in the product line identifies this cap within the AIR FLOW PRODUCTS fitting series.
Designed as an OEM-style end cap for use with 7-inch tee fittings in the AIR FLOW PRODUCTS 88 series duct fitting line.
Installation is typically performed by a licensed HVAC technician or sheet metal mechanic. Power down the air handling system and relieve any duct pressure before removing or capping branch fittings. Secure the end cap using appropriate fasteners or duct tape per local mechanical code requirements. Verify the sealed branch shows no air leakage before returning the system to service.
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