Reducing valve with filter

ARU2/ARU3A/FR21　Standard type（Port size：Rc1/8 , Rc1/4 , Rc3/8 , Rc1/2）; ARU3A/FR21S　Corrosion-resistant type（Port size：Rc1/4 , Rc3/8 , Rc1/2 ）; FR21P　Panel-mount type（Port size：Rc3/8 , Rc1/2）; FR21PS Panel-mount・Corrosion-resistant type（Port size：Rc3/8 , Rc1/2）; FR5　Instrumentation（Port size：Rc1/4 , Rc3/8 ）; FR5S　Instrumentation・Corrosion-resistant type（Port size：Rc1/4 , Rc3/8 ）