Internal Protection: The isolated spring chamber prevents water contact with the spring

As any experienced tech knows

Key Benefits OEM Precision Fit: Engineered as a direct York S1-328-12453-000 replacement to ensure physical compatibility with internal evaporator coil dimensions and existing drain line positioning

Direct OEM Fit: Eliminates the need for field splicing or modifications

York S1-1TVMBA1 TXV Kit R-407A Internal Protection: The isolated springThe York S1 1TVMBA1 TXV Kit is a precision engineered OEM thermal expansion valve designed to optimize refrigerant metering in R 410A systems. Built for high performance HVAC residential and light commercial applications, this kit is compatible with 1. 5 to 3 ton nominal capacity units, ensuring accurate superheat control and evaporator efficiency. Featuring a 3 4 inch Chatleff connection, the valve provides a secure, leak resistant interface