Pentair 77707-0113 Air Orifice Kit - 400K, 77707-0113

What This Part Is Used For
The Pentair 77707-0113 Air Orifice Kit is used in compatible 400K BTU Pentair heaters to regulate airflow within the burner Assembly. It supports proper combustion and ignition.

Why This Part Matters
A worn or incorrect orifice can cause flame instability and shutdown issues. Replacing the kit helps maintain efficient burner performance. Proper air regulation protects heat exchanger components.

Key Features and Specifications

• Pentair manufacturer part number: 77707-0113
• Air orifice kit
• For 400K heater models
• Supports combustion control
• Replacement heater component

Installation and Fitment Guidance
Shut off gas and electrical power before servicing. Inspect burner tray and vent system during installation. Confirm by manufacturer part number before ordering.

About the Pentair Brand
Pentair pool heaters are widely installed in residential and commercial settings. Their combustion components are engineered for specific heater capacities. Pentair service parts help maintain safe heating performance.

Common Service Context
This kit is often replaced during heater maintenance or after flame rollout issues. It is commonly serviced during seasonal heater startups.