this assembly is strictly engineered for Reznor HVAC units

which significantly reduces friction loss and noise in high-velocity gas lines

Replacing the full kit ensures all seating components are refreshed

utilizing this genuine OEM replacement part preserves the original equipment's performance ratings and safety certifications

Resideo TK30PV100SNK Combo Trim Kit 326058-757 this assembly is strictly engineeredThe Resideo TK30PV100SNK Combo Trim Kit provides a comprehensive solution for managing thermal expansion and air elimination in closed loop hydronic heating systems. Centered around a 4. 4 gallon extrol expansion tank, this kit maintains stable system pressure by absorbing the increased volume of heated water, preventing frequent activation of the pressure relief valve. The inclusion of the PV100S Provents air eliminator is critical for removing micro