THIS IS A MAGIC PLASTICS UNI-BODY SLICE VALVE (UNI-BODY JUST MEANS THE MAIN BODY IS ONE PIECE HAS 2" SLIP ON ONE SIDE 2" SLIP MEASURES 2-3/8" INSIDE DIAMETER" HAS 2" STANDARD MALE UNION THREADS ON THE OTHER SIDE (THREADS MEASURE ABOUT 3-1/8" OUTSIDE DIAMETER) INCLUDES A 2" SLIP PUMP UNION TO FIT THESE THREADS SAME AS A 9175-03 EXCEPT O-RING IS SLIGHTLY LARGER REPLACEMENT PARTS: TAILPIECE REPLACEMENT- USE 5081-19 NUT REPLACEMENT- USE 5081-20 O-RING USE 9175-17 GASKET HANDLE USE 6654-05 O-RING IS LARGER THAN 9170-04CA O-RING BUT 9175-17 GASKET WILL WORK FINE