Overview Reviews Product Description RK15.28HN 4.0GPM 4000PSI 1450RPM 24mm Triplex Plunger Pump FEATURES: Manifold: High strength forged brass for long term use Bolts: Eight 8mm grade 8.8 Plungers: A special thick ceramic for long life, strong durability, and more resilience Crankcase: Precision die cast, large cooling fins, and anodized for maximum heat dissipation. Sight glass, fill and side and bottom drain plugs Bearings: Oversized tapered roller bearing for maximum life and load disbursement Bearing Support: Precision die cast and machined to assure concentricity and alignment Valves, Seats, and Springs: Stainless steel with specially designed Ultra Form cages to provide long life and positive seating Seals and V-packing: Continuously lubricating for extended life Plunger Rods: Stainless steel construction for strength, no plating to scrape off, back up and oring plunger sealing system Connecting Rods: One piece special alloy aluminum for higher pressure, oversized for maximum strength, load disbursement, and long life SPECIFICATIONS: Maximum Volume: 4.0 GPM Maximum Pressure: 4,000 PSI Maximum Pump Speed: 1450 RPM Brake Horespower: 11.0 Shaft Size: 24mm Weight: 20 lbs. Product Videos Custom Field Product Reviews Write a Review Write a Review × AR RK15.28HN 4.0GPM 4000PSI 1450RPM 24mm Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *