8.723-578.0 Nozzle Qc 1/4 #4.5 X 0 Red Legacy ships factory direct right to your door. ADDITIONAL PRODUCT NOTES: Legacy QC Pressure Washer Nozzle, #4.5 x 0 deg. 8.723-578.0 model number - pwn00045-0aa, nozzle size - 4.5, thread type - quick connect- 1/4'', material type - stainless steel, psi - 4, 000, oem - legacy, 87235780,