{"product_id":"htomt-ac-oil-injector-kit-2-oz-aluminum-injector-with-r1234yf-qc12-low-side-couplers-for-precise-dosing","title":"HTOMT AC Oil Injector Kit — 2 oz Aluminum Injector with R1234YF \u0026 QC12 Low-Side Couplers for Precise Dosing","description":"\u003cp\u003e\u003cstrong\u003eHTOMT AC Oil Injector Kit is a compact professional-grade tool that injects oil or fluorescent dye into automotive and HVAC low-side systems compatible with R1234YF, R134A, R22 and R12 refrigerants.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis injector kit combines a clear, laser-engraved 2 oz (60 ml) aluminum cylinder, a one-way check valve and two low-side quick couplers so you can add precise amounts of PAG\/POE\/mineral oil or leak-detecting dye without switching tools. It was designed for service technicians and DIYers who need accurate dosing, visual oil level checks, and adapters for newer refrigerants such as R1234YF alongside legacy refrigerants.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the injector connect to different A\/C systems?\u003c\/h3\u003e\n\u003cp\u003eThe HTOMT kit includes both an R1234YF low-side quick coupler and a QC12 low-side coupler, letting you attach directly to the vehicle or system low-pressure port. The 1\/4-inch female threaded connector and universal fittings reduce the need for extra adapters and simplify setup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes R1234YF low-side quick coupler and QC12 quick coupler\u003c\/li\u003e\n  \u003cli\u003e1\/4\" female threaded connector fits common service ports\u003c\/li\u003e\n  \u003cli\u003eSnap-on couplers allow tool-free connection and rapid removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I measure and inject the correct oil amount?\u003c\/h3\u003e\n\u003cp\u003eThe injector body is laser-engraved with clear graduations from 1\/4 oz (7.5 ml) up to 2 oz (60 ml), making volume checks straightforward. A visual oil checker in the cylinder helps confirm existing system oil level before and after adding, so you avoid over- or under-charging the system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGraduated scale for precise dosing (7.5 ml to 60 ml)\u003c\/li\u003e\n  \u003cli\u003eTransparent cylinder lets you observe dye or oil flow\u003c\/li\u003e\n  \u003cli\u003eThreaded core on the valve lets you purge trapped gas before injection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat types of oil and dye are compatible?\u003c\/h3\u003e\n\u003cp\u003eThis injector accepts both mineral and synthetic oils commonly used in automotive and HVAC systems, plus fluorescent leak-detection dyes. It is built to work with a variety of refrigerants, so you can use one tool across many service scenarios.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with POE, PAG and mineral oils\u003c\/li\u003e\n  \u003cli\u003eCompatible with fluorescent dyes for leak detection\u003c\/li\u003e\n  \u003cli\u003eSuitable for R1234YF, R134A, R22, R12 and other refrigerants\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I operate the kit safely and efficiently?\u003c\/h3\u003e\n\u003cp\u003eAssemble the three main parts—cylinder, check valve and quick connector—tighten clockwise, purge with the small threaded core, then attach to the low-pressure port and dispense the measured volume. Use personal protective equipment and follow refrigerant-handling safety procedures for best results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTighten check valve and cylinder clockwise for leak-free seal\u003c\/li\u003e\n  \u003cli\u003ePurge trapped gas via the 1\/4\" threaded core before dosing\u003c\/li\u003e\n  \u003cli\u003eInject required oil amount while monitoring the gauge markings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The HTOMT AC Oil Injector Kit is ideal for HVAC technicians, auto repair shops, fleet maintainers and knowledgeable DIYers who service refrigeration or automotive A\/C systems. It’s for anyone needing a portable, accurate injector that supports modern R1234YF systems as well as legacy refrigerants, and who values clear measurement, fast low-side couplers and compatibility with oils and fluorescent dyes. The kit contains one 2 oz injector plus both R1234YF and QC12 low-side couplers, delivering a compact, versatile tool for routine maintenance and leak detection tasks.\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 on R1234YF systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes an R1234YF low-side quick coupler and works with R1234YF refrigerant and compatible oils.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What oil types and volumes can it handle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It accepts POE, PAG and mineral oils, plus fluorescent dyes, and measures from 1\/4 oz (7.5 ml) to 2 oz (60 ml).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HTOMT","offers":[{"title":"Default Title","offer_id":48086774022302,"sku":"B0D6F8D4F2","price":55.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/htomt-front-view-injector-kit.jpg?v=1785904554","url":"https:\/\/northtrailauto.ca\/products\/htomt-ac-oil-injector-kit-2-oz-aluminum-injector-with-r1234yf-qc12-low-side-couplers-for-precise-dosing","provider":"North Trail Auto","version":"1.0","type":"link"}