Listing is for ONE COMPLETE 7 BLOCK ARO PNEUMATIC ASSEMBLY. LISTING INCLUDES 1-ARO#(104174-4)PNEUMATIC WASTE GATE VALVE 1-ARO#(F25241-111)AIR/WATER SEPERATOR 1-ARO#(L26241-110)PNEUMATIC OILER 2-ARO#(R27241-600)REGULATORS 2- 4-WAY 3/8" NPT OUTPUT BLOCKS. THE ASSEMBLY MEASURES 19" LONG BY 8" TALL BY 5"DEEP, MEASURED FROM WALL OUT TO FRONT OF THE AIR GUAGE. THE INPUT AND OUTPUT PORTS ARE 1/2"NPT. THIS WAS REMOVED FROM A FULLY FUNCTIONAL MACHINE, HOWEVER, I REMOVED THE OILER TO EMPTY THE LUBE, AND THE O-RING, GOT MESSED UP. SO IT WILL NEED A NEW ONE, BUT BESIDES THAT IT IS A REALLY NICE USED ASSEMBLY. IF ANYONE HAS ANY QUESTIONS REGARDING THIS ITEM PLEASE FEEL FREE TO MESSAGE US WE WOULD BE HAPPY TO ANSWER THEM GOD BLESS AND THANKS FOR LOOKING.