Return line filters are mainly used for low pressure return lines. Hydraulic fluid is returned to the reservoir. They offer fine filtration in a choice of mesh sizes, with a built in by-pass valve (recommended). These filters are available in T-type filter, in-line filter, spin on filter and color indicating Colorator. Threaded ports, bolt on, spin on,brass housings and Stainless Steel element options. Condition indicator and differential electrical switching.