fluid communication with an exhaust port 30 through the pole piece 86 the second bore 112 includes a supply opening 128 at a lower end of the valve body 64 that is in fluid communication with a supply port 130 at a lower location of the filter unit 32 the filter unit 32 is positioned on the sleeve 18 and provides a flow passage between the valve body supply opening 128 and the supply port 130 and is held in position by a ring 132 on the filter unit 32 fitting into a groove on the sleeve 18 when the coil 44 is not energized transmission fluid applied to the supply port 130 flows into the second bore 112 and flows out of the openings 124 into the chamber 63 because the lower metering edge 120 of the middle portion 114 does not contact the armature 60 when it is in this position the transmission fluid flows into the recess 104 out of the opening 102 and into the chamber 36 out of an annular control port 136 and through the filter unit 32 therefore the supply pressure p s is equal to the control pressure p c in that by changing.