Caleffi ½" NPT female Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ½" NPT female (with outlet temperature gauge) Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ¾" NPT female Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ¾" NPT female (with outlet temperature gauge) Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ½" NPT female (with inlet check valve) Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ½" NPT female (with inlet check valve & outlet temperature gauge) Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ¾" NPT female (with inlet check valve & outlet temperature gauge) Adjustable thermal balancing valve for domestic hot water recirculation circuits.

Caleffi ¾" NPT female (with inlet check valve) Adjustable thermal balancing valve for domestic hot water recirculation circuits.