{"product_id":"fimco-high-flo-12v-demand-diaphragm-pump-4-5-gpm-60-psi-chemically-resistant-upgrade","title":"Fimco High Flo 12V Demand Diaphragm Pump — 4.5 GPM, 60 PSI, chemically resistant upgrade","description":"\u003cp\u003e\u003cstrong\u003eFimco's High Flo 12V Demand Diaphragm Pump is a self-priming, 4.5 GPM electric pump with a 60 PSI max and built-in demand shutoff for reliable spot or broadcast spraying.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe High Flo Upgrade pump from Fimco is engineered to deliver steady flow and long service life in agricultural and landscaping sprayer systems. Designed for 12-volt operation, this diaphragm-style unit combines chemically resistant components, a thermostatically cooled motor, and built-in safety features so you can handle a range of liquid applications — including herbicide use where compatible — without frequent maintenance. It replaces several legacy Fimco pump part numbers and includes protection against common field stresses like running dry or pressure spikes.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the pump maintain pressure and save battery life?\u003c\/h3\u003e\n\n\u003cp\u003eThis model uses an integrated demand switch that stops the motor once the preset maximum pressure is reached, then restarts when pressure falls. That automatic cycling reduces continuous motor run time and reduces battery drain compared with non-demand pumps. The pump also has internal check valves to hold pressure and prevent backflow when the motor is off.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAutomatic demand switch stops pump at maximum pressure (60 PSI)\u003c\/li\u003e\n  \u003cli\u003eBuilt-in check valves retain pressure and prevent backflow\u003c\/li\u003e\n  \u003cli\u003eReduced runtime lowers 12V battery load during intermittent spraying\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes this pump durable for chemical and field use?\u003c\/h3\u003e\n\n\u003cp\u003eFimco engineered the High Flo with elastomers and seals that resist degradation from many common agricultural chemicals. The motor is fan-cooled internally to keep temperatures down during sustained use, and the diaphragm design tolerates brief dry running without immediate failure. Inline fuse protection and a ball bearing drive add mechanical and electrical resilience in tough environments.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eChemically resistant elastomers for extended seal life\u003c\/li\u003e\n  \u003cli\u003eInternal fan cooling for consistent performance under load\u003c\/li\u003e\n  \u003cli\u003eSelf-priming and safe to run dry for short periods without damage\u003c\/li\u003e\n  \u003cli\u003eInline fuse and ball bearing drive protect motor and electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this pump easy to install and compatible with existing systems?\u003c\/h3\u003e\n\n\u003cp\u003eThe pump uses quick-connect port fittings to speed installation and reduce leak points. It is designed as a drop-in upgrade for multiple Fimco pump part numbers, so it fits common mounting and plumbing arrangements in sprayer setups. Quick attach fittings also simplify swapping hoses or servicing the unit in the field.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eQuick-connect ports for fast hooking to hoses and fittings\u003c\/li\u003e\n  \u003cli\u003eReplacement for several legacy Fimco pump part numbers\u003c\/li\u003e\n  \u003cli\u003eStandard 12V electrical connection for vehicle and utility battery systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this pump with herbicides like Roundup?\u003c\/h3\u003e\n\n\u003cp\u003eThe High Flo pump is compatible with many herbicide solutions when those formulas are approved for diaphragm-style pumps. Use manufacturer guidance for any chemical and always flush the system after use to prevent concentration buildup and prolong component life. Avoid corrosive or solvent-based products not rated for elastomer seals.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with many herbicides if labeled for diaphragm pumps\u003c\/li\u003e\n  \u003cli\u003eFlush system after chemical use to protect seals and valves\u003c\/li\u003e\n  \u003cli\u003eAvoid materials not rated for chemical resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Fimco High Flo 12V Demand Diaphragm Pump suits farmers, landscapers, and contractors who need a compact, dependable sprayer pump that balances high flow with energy efficiency. It’s ideal for users upgrading older Fimco units, building a 12V mobile sprayer, or anyone who wants a robust pump able to handle intermittent spot-spraying and broadcast applications while resisting common agricultural chemicals. Backed by a two-year warranty, it’s a practical choice for demanding fieldwork where uptime matters.\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: What voltage and flow rate does this pump use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It operates on 12 volts with a maximum flow of 4.5 GPM and a top pressure of 60 PSI.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will running the pump dry damage it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—this diaphragm pump is self-priming and built to tolerate brief dry runs without immediate damage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fimco","offers":[{"title":"Default Title","offer_id":56801847345492,"sku":"B07PMTDSZG","price":179.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/fimco-high-flo-front-view_jpg.jpg?v=1786751095","url":"https:\/\/gardenluxe.co.uk\/products\/fimco-high-flo-12v-demand-diaphragm-pump-4-5-gpm-60-psi-chemically-resistant-upgrade","provider":"Gardenluxe Uk","version":"1.0","type":"link"}