{"product_id":"qufysk-coolant-flush-gun-lever-action-heater-core-radiator-flush-kit-with-5-adapters-19-40mm-and-air-water-pulse","title":"QUFYSK Coolant Flush Gun, Lever-Action Heater-Core \u0026 Radiator Flush Kit with 5 Adapters (19–40mm) and Air+Water Pulse","description":"\u003cp\u003e\u003cstrong\u003eQUFYSK Coolant Flush Gun is a lever-action heater core and radiator flush kit that uses water plus compressed air to quickly clear rust, scale, and debris from automotive cooling and heater-core hoses.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit includes a trigger-operated flush gun, five universal coolant-vent adapters sized for 19–40 mm hoses, three hose adapters, an air line fitting, and PTFE sealant tape so you can connect garden hoses and shop air lines for a forceful, controlled flush. It’s designed to restore flow through heater cores and radiators by combining pressurized water with bursts of air to dislodge contaminants and move them out of the cooling circuit.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the QUFYSK flush gun remove buildup from heater cores?\u003c\/h3\u003e\n\u003cp\u003eThe gun delivers alternating water flow and compressed-air pulses that agitate and push trapped rust, sediment, and scale out of narrow heater-core passages. The lever-action trigger controls flow intensity while a lock lets you run continuous flushing without hand fatigue.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAir+water mixing creates strong, directional flushing force\u003c\/li\u003e\n  \u003cli\u003eMultiple nozzle sizes match common coolant hose diameters\u003c\/li\u003e\n  \u003cli\u003eLever lock supports extended flushing sessions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and hose sizes are compatible with this kit?\u003c\/h3\u003e\n\u003cp\u003eQUFYSK supplies five vent adapters (19, 29, 32, 36.5, 40 mm) plus three hose fittings to fit standard garden and US-thread hoses. That covers most passenger cars, light trucks, and many older or imported models that use 1\/2\"–3\/4\" cooling hoses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdapters for 0.7 in (19 mm) to 1.6 in (40 mm) coolant ports\u003c\/li\u003e\n  \u003cli\u003eFits 1\/2\", 5\/8\" and 3\/4\" garden hose threads and 1\/4\" shop air\u003c\/li\u003e\n  \u003cli\u003ePTFE tape included for leak-free connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do I need to set up and operate the flush gun?\u003c\/h3\u003e\n\u003cp\u003eSet up requires a garden hose, a compressed-air source with a 1\/4\" line, and basic hand tools to access heater-core hoses. Connections are straightforward: attach water and air, select the matching adapter, seal with PTFE tape, then insert the nozzle into the coolant line and trigger the flush.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNozzle inserts into heater or radiator hose for direct flushing\u003c\/li\u003e\n  \u003cli\u003eAdjustable trigger and lock for precise control and hands-free operation\u003c\/li\u003e\n  \u003cli\u003eIncludes air fitting and seal tape to reduce leaks during use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does a typical flush take and what results should I expect?\u003c\/h3\u003e\n\u003cp\u003eA basic flush usually takes 10–30 minutes depending on contamination level and system access. Expect clearer discharge water and improved flow through heater cores or radiators; repeat as needed until runoff appears clean. Always follow vehicle manufacturer guidance for coolant disposal and system refills.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuick initial flush in about 10 minutes for light deposits\u003c\/li\u003e\n  \u003cli\u003eLonger sessions for heavy corrosion or buildup\u003c\/li\u003e\n  \u003cli\u003eSafe, controlled flushing helps avoid pushing debris into other components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The QUFYSK Coolant Flush Gun Kit is aimed at DIY mechanics, professional technicians, and fleet maintenance crews who need a compact, versatile tool to clear heater cores, radiators, and coolant hoses. It suits anyone with access to a garden hose and shop air who wants a faster, more effective flush than gravity-only methods — while keeping connections sealed and hands comfortable during extended work.\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 I use this kit with my garden hose and shop air?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it accepts 1\/2\", 5\/8\", and 3\/4\" garden hoses and a 1\/4\" shop air line; PTFE tape is included for secure seals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the kit fit my vehicle's heater-core hose?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Probably — five coolant-vent adapters cover 19–40 mm ports, which match most common heater-core and radiator hose openings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QUFYSK","offers":[{"title":"Default Title","offer_id":48085218197662,"sku":"B0G7WK4J64","price":40.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/qufysk-front-view-flush-gun-kit.jpg?v=1785868000","url":"https:\/\/northtrailauto.ca\/products\/qufysk-coolant-flush-gun-lever-action-heater-core-radiator-flush-kit-with-5-adapters-19-40mm-and-air-water-pulse","provider":"North Trail Auto","version":"1.0","type":"link"}