Freeze preventing valve
Freeze protection device
Freeze protection valve
Freeze protection valve assembly
Freeze protection valve with improved resetting capability
Freeze protection valve with metal to plastic fitting design
Frostproof backflow preventer
Icing preventer with temperature adjustment washer
Icing preventor
Icing preventor
Methods and apparatus for prevention of water pipe freeze-up in
Screw stopper including anti-freeze device used for water pipe v
Self-actuating variable rate water pipe bleeder
Snap-acting drain valve
Solar heater system and valve
Temperature activated valve
Temperature actuated valve
Temperature controlled valve mechanism and method
Temperature controlled valve mechanism and method
Temperature-responsive valve