8.723-579.0 Nozzle Qc 1/4 #5.5 X 0 Red Legacy ships factory direct right to your door. ADDITIONAL PRODUCT NOTES: Legacy QC Pressure Washer Nozzle, #5.5 x 0 deg. 8.723-579.0 model number - pwn00055-0aa, nozzle size - 5.5, thread type - quick connect- 1/4'', material type - stainless steel, psi - 4, 000, oem - legacy, 87235790,