{"product_id":"ar-annovi-reverberi-pressure-washer-replacement-pump-right-hand-2-800-psi-2-5-gpm-with-ez-start","title":"AR ANNOVI REVERBERI pressure washer replacement pump — Right-hand 2,800 PSI 2.5 GPM with EZ Start","description":"\u003cp\u003e\u003cstrong\u003eAR ANNOVI REVERBERI RMW25G28-EZ is a right-handed triplex plunger pump rated at 2,800 PSI and 2.5 GPM, designed to mount directly to 7\/8\" vertical gas engine shafts with EZ start and thermal relief features.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact residential pump replaces OEM units on vertical gas-engine pressure washers and is built to deliver consistent pressure at 3,400 RPM. The die-cast aluminum body, pressed-brass pump head and swash-plate-driven pistons make it suitable for cleaning applications where a direct-coupled, durable pump is required. It arrives with a keyed hollow shaft connection, integral pressure regulation, downstream chemical injection capability, an EZ start valve and a thermal relief valve for safer operation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this pump attach to my vertical gas engine?\u003c\/h3\u003e\n\u003cp\u003eThe RMW25G28-EZ mounts directly to the engine by sliding its keyed hollow 7\/8\" shaft over the engine output shaft and securing at the flange. This makes it a straightforward swap for many 4–7 HP vertical gas engines commonly used on consumer carts and OEM units.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/8\" keyed hollow shaft fits most vertical gas engines\u003c\/li\u003e\n  \u003cli\u003eFlange mounting for direct coupling—no belt or gearbox needed\u003c\/li\u003e\n  \u003cli\u003eCompatible with many OEM carts designed for vertical shaft motors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance can I expect from this pump?\u003c\/h3\u003e\n\u003cp\u003eThis model delivers up to 2.5 gallons per minute and a maximum working pressure of 2,800 PSI when spinning at 3,400 RPM. Its three-piston alternating volumetric design provides a steady flow suitable for typical residential and light-commercial cleaning tasks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlow: 2.5 GPM (9.5 L\/min)\u003c\/li\u003e\n  \u003cli\u003ePeak pressure: 2,800 PSI (193 bar)\u003c\/li\u003e\n  \u003cli\u003eRated speed: 3,400 RPM for optimal output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat built-in controls and protections are included?\u003c\/h3\u003e\n\u003cp\u003eThe pump includes integrated components to protect equipment and simplify operation, such as an adjustable pressure control valve and a thermal relief device. It also offers a downstream chemical injection port for safe detergent application and an EZ start valve to reduce starting load on the engine.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntegral pressure control valve for stable outlet pressure\u003c\/li\u003e\n  \u003cli\u003eThermal relief valve prevents overheating and fluid damage\u003c\/li\u003e\n  \u003cli\u003eDownstream chemical injection for safe detergent use\u003c\/li\u003e\n  \u003cli\u003eEZ Start valve eases engine cranking under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and service features I should know?\u003c\/h3\u003e\n\u003cp\u003eThe pump combines durable materials and service-forward design: a die-cast aluminum body for light weight, pressed-brass pump head for corrosion resistance, hardened steel pistons and double-gasket sealing for reliable sealing. Two bearing assemblies support the shaft and pistons to extend service life, and standard inlet\/outlet fittings make plumbing simple.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePump head: pressed brass; pump body: die-cast aluminum alloy\u003c\/li\u003e\n  \u003cli\u003ePistons driven by swash-plate, hardened steel components\u003c\/li\u003e\n  \u003cli\u003eDouble-gasket sealing and two-bearing support for longevity\u003c\/li\u003e\n  \u003cli\u003eConnections: 3\/4\" inlet, 22mm x 1.4 outlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This AR ANNOVI REVERBERI RMW25G28-EZ pump is aimed at homeowners, service technicians and small-business operators replacing or upgrading vertical-shaft gas-engine pressure washer pumps. It fits users who need a compact, direct-coupled replacement with integrated pressure control, detergent injection and safety features—ideal for residential cleaning, light commercial jobs and OEM cart restoration projects.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this pump fit my 6 HP vertical shaft engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the RMW25G28-EZ uses a 7\/8\" keyed hollow shaft and fits most 4–7 HP vertical gas engines; verify shaft diameter and key alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the pump include detergent injection?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it has a built-in downstream chemical injection port for safe detergent application.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AR ANNOVI REVERBERI","offers":[{"title":"Default Title","offer_id":56806087655764,"sku":"B079CZHZTB","price":267.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/ar-annovi-reverberi-front-view-pump_526f6e70-1918-4063-8d42-de3b480df48e.jpg?v=1786812972","url":"https:\/\/gardenluxe.co.uk\/products\/ar-annovi-reverberi-pressure-washer-replacement-pump-right-hand-2-800-psi-2-5-gpm-with-ez-start","provider":"Gardenluxe Uk","version":"1.0","type":"link"}