Check the listing for details. EWD-K 4042G 4200PSI, 4.0GPM Comet Direct Drive Pump with Unloader. Condition: New. Listed at 412.28 USD. Comet EWD-K 4042G, EWD 4042 G-K Pump with Built-In Unloader, chemical injector, thermal valve and garden hose inlet connector. This 4, 200 PSI & 4.0 GPM pump is designed to direct drive on gasoline 1” Hollow Shaft engines ranging from 9 - 13 HP Features• Built-In adjustable unloader with chemical injector• 1” Hollow Shaft with SAE J609B flange for coupling to gas engines• High-strength Brass Pump Head• New designed reversible carter made in special aluminum alloy• Stainless –steel hardened piston guides• Special plugs for dust protection• O- ring and labyrinth oil seal system between crankcase and rear cover, to reduce oil splashing• Wide oil level viewer• Special aluminum alloy conrods made in a single piece• Top-quality and oversized ball-needle bearings to ensure long durability• Highly efficient stainless steel check valves with removable plugs for easy inspection• Solid ceramic plungers, high corrosion and abrasion-proof• High performance double sealing system Specifications• Max. Volume: 4.0 GPM• Max. Discharge Pressure: 4,200 PSI • Max. Pump Speed: 3,400 RPM• Shaft Diameter: 1” Hollow• Max. Horsepower Requirements: 15.27 GHP COMPONENTS: • Comet EWD-K 4042G Triplex Plunger Pump• Thermal relief valve• 3/4” Garden Hose Inlet Fitting• 3/8” QC brass socket• Mounting bolts• Chemical injector hose and filter• Note: Pumps are not tested prior to shipping and unloader will need to be adjusted • Weight: 16.10 lb>