Grommet 2" at widest point-for the bulk head body elongated hole to protect the heater hoses on cars from 1989 with the in line heater valve and 5/8" heater hose. The 2 hoses go through the baulk head on the left hand side and fits a 32/33.5mm hole. Some cars might have these between 1985 and 1989 but see
34G3651 for approximately 1"hole fitting,earlier 1/2" heater hose cars.Sold individually per grommet