※HSIEN CHANG Thermostatic valve keeps water temperature within a safe ±3° F (±1.6° C), helping to protect you from sudden changes in hot or cold water pressure.

※The Series BT521-00 features Vernet advanced paraffin-based actuation technology.

※High flow rate performance.

※The Hsien Chang Series BT521-00 is ASSE 1016-T listed and cUPC certified.

Connector Type: 3/4" NPT