Mueller Industries A17938 Check Valve 321894-709 This specific model is specialized

This specific model is specialized for fuel gas service

The VST1100FS is the official replacement for HH07AT215

helping you avoid repetitive service calls and potential equipment failure caused by improper current regulation

Key Benefits for Technicians Efficient Installation: The Erie PopTop design enables one-handed actuator removal and engagement

this unit is the designated York direct replacement for that specific 460/480V model

Mueller Industries A17938 Check Valve 321894-709 This specific model is specializedThe Mueller Industries A17938 Check Valve is a veteran grade 3 4 Magnetic Check Valve engineered for high performance backflow prevention in commercial refrigeration and HVAC systems. Unlike standard spring loaded designs, this CheckMaster magnetic check valve utilizes a magnetically operated poppet that eliminates the mechanical fatigue often associated with traditional springs. This design ensures a more reliable unidirectional flow with a pressure