{"product_id":"fanovo-1234yf-ac-dye-injector-2-oz-shut-off-ball-valve-backflow-preventer-with-r134a-r1234yf-r410-adapters","title":"FANOVO 1234YF AC Dye Injector 2 oz — Shut-Off Ball Valve \u0026 Backflow Preventer with R134a\/R1234yf\/R410 Adapters","description":"\u003cp\u003e\u003cstrong\u003eFANOVO 1234YF AC Dye Injector is a 2 oz HVAC oil and fluorescent dye injection tool with a shut-off ball valve and built-in backflow preventer for safe, controlled dye charging into R134a, R1234yf and R410 systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact injector combines a push-in 2 oz reservoir, etched volume markings, and a knurled aluminum handle for easy, precise dye or oil dosing into automotive and residential or commercial AC systems. It ships with three low-side pressure adapters (R1234yf, R134a, R410), a valve core remover and gloves, enabling technicians and DIYers to trace leaks and add lubricant without cross-contamination or mess.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the shut-off ball valve and backflow preventer protect my system?\u003c\/h3\u003e\n\u003cp\u003eThe integrated shut-off ball valve gives you immediate control over flow, letting you stop injection without disconnecting. The built-in backflow preventer on the 1\/4\" SAE connection stops refrigerant from entering the injector, reducing contamination risk when changing cartridges or adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShut-off valve lets you start\/stop flow quickly for precise dosing\u003c\/li\u003e\n  \u003cli\u003eBackflow preventer protects injector and cartridge from refrigerant ingress\u003c\/li\u003e\n  \u003cli\u003e1\/4\" SAE connector compatible with standard low-side fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the FANOVO injector compatible with different refrigerant types and systems?\u003c\/h3\u003e\n\u003cp\u003eYes — the tool was designed to work with R134a, R1234yf and R410A systems, and is suitable for automotive, residential and light commercial air conditioning. The kit includes three low-side adapters so you can switch between common service ports without improvising fittings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdapters for R1234yf, R134a and R410 included\u003c\/li\u003e\n  \u003cli\u003eWorks on vehicle and building AC low-side service ports\u003c\/li\u003e\n  \u003cli\u003eKnurled handle and etched markings ease accurate charging across systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction ensure durability and safe connections?\u003c\/h3\u003e\n\u003cp\u003eThe injector body is machined from aluminum alloy for low weight and corrosion resistance, while the adapters and 1\/4\" fittings are solid brass for reliable threads and sealing. A thickened rubber hose provides a flexible, leak-resistant link between injector and system during service work.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum alloy body resists corrosion and is lightweight\u003c\/li\u003e\n  \u003cli\u003eSolid brass adapters deliver strong threaded connections\u003c\/li\u003e\n  \u003cli\u003eDurable rubber hose prevents kinks and maintains safe flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to set up and use the injector for a novice?\u003c\/h3\u003e\n\u003cp\u003eAssembly is straightforward: tighten the check valve to the cartridge, screw inner and outer cylinders clockwise, then purge a small amount through the 1\/4\" SAE inner core to remove trapped air. The etched volume markings, knurled handle and included gloves help ensure a clean, controlled operation even for first-time users.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePush-in 2 oz reservoir with etched capacity markings for accurate dosing\u003c\/li\u003e\n  \u003cli\u003eSimple screw-together assembly and one-step air purge procedure\u003c\/li\u003e\n  \u003cli\u003eIncludes valve core remover and gloves for safe handling and port access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: FANOVO's 1234YF AC Dye Injector is aimed at HVAC technicians, automotive mechanics and informed DIYers who need a compact, reliable tool for injecting fluorescent dye or oil into refrigeration systems. It’s especially useful when diagnosing leaks, adding lubricant during service, or when working across multiple refrigerant types and service ports. If you want controlled dosing, backflow protection and a kit that includes the common low-side adapters and accessories, this injector is built for those tasks without the bulk of larger rigs.\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: Can this injector be used with R1234yf systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it includes an R1234yf low-side adapter and is compatible with R1234yf systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What capacity of dye\/oil does the injector hold?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The push-in reservoir holds up to 2 oz (60 ml) with etched markings for smaller amounts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FANOVO","offers":[{"title":"Default Title","offer_id":48082996363422,"sku":"B0C2HFZYLN","price":64.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fanovo-front-view-injector.jpg?v=1785822214","url":"https:\/\/northtrailauto.ca\/products\/fanovo-1234yf-ac-dye-injector-2-oz-shut-off-ball-valve-backflow-preventer-with-r134a-r1234yf-r410-adapters","provider":"North Trail Auto","version":"1.0","type":"link"}