Caleffi 521509A Thermostatic and Pressure Balanced Mixing ValveCaleffi 521509A Thermostatic and Pressure Balanced Mixing Valve delivers precise temperature control for domestic hot water, hydronic, and radiant heating systems. This Type 3 Way, adjustable thermostatic mixing valve features a 3 4 inch nominal size and soldered end connections on all ports, with an end to end distance of 5 inches. The brass body is lead free, engineered for reliability in busy plumbing environments, and designed to maintain steady

Versatile applications: Ideal for residential

cast iron casing

Its rugged construction and user-friendly mounting options support quick deployment

this part ensures consistent performance and reliable hot water delivery in a residential setting

the Inducer Motor Assembly helps preserve essential safety features and furnace efficiency

Easy replacement that replaces 7600A0001U with compatible wiring

OEM-grade compatibility: Matches AO Smith specifications and replaces 100108400 and 9000396015

making it a practical choice for service pros who work on AO Smith units

With four selectable speeds

Upgrade your home heating system today with this dependable blower control board and enjoy renewed furnace performance

This air tube ensures precise air delivery for reliable ignition and efficient combustion

Easy installation with standard fittings and connectors