Carrier EC31EZ120 Check Valve 326010-701 The Erie PopTop series is

The Erie PopTop series is the industry standard for reliable HVAC zone control

1-Inch NPT Connection: Provides a secure

This SPST (Single Pole Single Throw) controller operates within a 140-240°F temperature range

Broad Compatibility: Validated for use in a variety of Johnson Controls (JCI) branded air handlers and furnace coils

Carrier EC31EZ120 Check Valve 326010-701 The Erie PopTop series isThe Carrier EC31EZ120 Check Valve is a genuine OEM replacement part specifically engineered for industrial refrigeration and high performance HVAC systems. Designed with a precise spring loaded mechanism, this valve ensures reliable unidirectional flow and prevents damaging backflow in critical liquid or suction line applications. As an HVAC check valve built to exact factory specifications, it provides a seamless drop in replacement for Carrier