Watts 0123504 Check Valve 318820-201 Contamination Control: Effectively seals open

Contamination Control: Effectively seals open lines to prevent non-condensables and moisture from entering the refrigerant circuit or internal components

Built with an internal safety shut-off

Enhanced Durability: Built with high-grade bearings and housing materials to resist corrosion from flue gas condensate

this Source 1 pressure control offers a drop-in HVAC inducer safety switch solution that maintains the precise static pressure setpoints required by commercial and residential air handlers

Precise Airflow Control: A steady 840 RPM output preserves the system’s original SEER rating and head pressure balance

Watts 0123504 Check Valve 318820-201 Contamination Control: Effectively seals openThe Watts 0123504, part of the LFWCVS Series, is a heavy duty 3 4 inch solder swing check valve engineered for critical backflow prevention in potable water and steam systems. Built with a lead free brass body, this tee pattern valve ensures compliance with strict low lead safety standards for commercial and residential fluid control. Its robust construction features a metal to metal seat and a durable PTFE gasket, delivering a reliable seal that