Comet Zwd 4040G 4GPM Pressure Washer Pump Assembly 4000PSI With Unloader High Quality Pressure Washer Pump Assembly Complete – 4000 psi Review Tagged on: Comet Lawn & Garden Outdoor Power Tools Patio Pressure Washer Parts & Accessories Pumps CountrySpecter June 18, 2018October 5, 2018 Replacement Parts and Accessories No Comments