{"product_id":"vivohome-3-5-cfm-vacuum-pump-for-r134a-r12-r22-r410a-systems","title":"VIVOHOME 3.5 CFM 1\/4 HP HVAC Vacuum Pump - Reliable AC Service","description":"\u003cp\u003eIn this review the VIVOHOME 3.5 CFM 1\/4 HP vacuum pump is tested as a compact shop tool for DIYers and small-service technicians who need a dependable way to evacuate air conditioning and refrigeration lines. The biggest reason to consider it is straightforward: a durable die-cast aluminum housing and a 1\/4 HP single-stage motor deliver up to \u003cstrong\u003e3.5 CFM flow\u003c\/strong\u003e and pull systems down to low pressure, making moisture removal before refrigerant charging simple and repeatable.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable housing:\u003c\/strong\u003e The die-cast aluminum body reduces the need for frequent maintenance and holds up to regular garage or shop use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong motor performance:\u003c\/strong\u003e The 1\/4 HP single-stage motor provides up to 3.5 CFM and can draw systems down to about 5 Pa for effective moisture removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling design:\u003c\/strong\u003e Mesh vent, T-shaped motor heat fins and a high-power cooling fan help the pure copper motor dissipate heat for smoother operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe operation:\u003c\/strong\u003e An exhaust filter separates oil mist from exhaust gases and an anti-backflow design prevents oil from returning to the pump chamber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser convenience:\u003c\/strong\u003e Oil sight window with scale marks, an oil drainage port and a 0.35 qt vacuum oil bottle are included for easier service and maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide refrigerant compatibility:\u003c\/strong\u003e Works with common refrigerants R134a, R12, R22 and R502 and includes a 5\/16-in adapter for R410a use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe pump is well suited to home mechanics, HVAC hobbyists and small repair shops that need a compact, portable unit for automotive air conditioning, small refrigeration jobs and resin degassing. Its \u003cstrong\u003eergonomic grip\u003c\/strong\u003e and anti-slip feet make it easy to move between jobs, and the included oil bottle helps new users get started quickly.\u003c\/p\u003e\n\u003cp\u003eIt is not aimed at heavy commercial shops that require multi-stage or much higher CFM pumps for large systems. Also, users who rely on specialty manifold fittings should verify compatibility first, as some customers reported mixed results with connection sizes.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid build quality with die-cast aluminum housing for durability.\u003c\/li\u003e\n\u003cli\u003eGood vacuum capacity and sensible cooling features for extended runs.\u003c\/li\u003e\n\u003cli\u003eIncludes oil, sight window and easy oil drain for simple maintenance.\u003c\/li\u003e\n\u003cli\u003eCompatible with several refrigerants and includes adapter for R410a.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnection size compatibility receives mixed feedback and may require adapters for some manifold gauges.\u003c\/li\u003e\n\u003cli\u003eSome users reported inconsistent reports on leakage, so check fittings before critical jobs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eVIVOHOME\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e1\/4 HP single-stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e3.5 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate vacuum\u003c\/td\u003e\n\u003ctd\u003eDown to 5 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e110V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded oil\u003c\/td\u003e\n\u003ctd\u003e0.35 qt \/ 330 ml vacuum oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant compatibility\u003c\/td\u003e\n\u003ctd\u003eR134a, R12, R22, R502 (5\/16-in adapter for R410a)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe VIVOHOME 3.5 CFM vacuum pump is a sensible choice for DIY mechanics and small shops that need a portable, reliable unit to evacuate and service small AC and refrigeration systems. It combines durable construction, practical cooling and safety features, plus useful service touches like an oil sight window and included oil, making it good value for typical light-to-medium duty tasks.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this pump service R410a systems?\u003c\/strong\u003e\u003cbr\u003eYes; the pump includes a 5\/16-in adapter specifically to work with R410a fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the pump come ready to run?\u003c\/strong\u003e\u003cbr\u003eIt ships with 0.35 qt \/ 330 ml of vacuum oil and an ergonomic handle, so it is ready for initial use after connecting to your manifold and system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for heavy commercial HVAC work?\u003c\/strong\u003e\u003cbr\u003eNo; this single-stage 3.5 CFM unit is best for small automotive AC and light refrigeration tasks rather than large commercial systems.\u003c\/p\u003e","brand":"VIVOHOME","offers":[{"title":"Default Title","offer_id":48115084198107,"sku":"B0D476ZPBK","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81Pfaue-WhL._AC_SL1500.jpg?v=1768017573","url":"https:\/\/gearmusthave.com\/products\/vivohome-3-5-cfm-vacuum-pump-for-r134a-r12-r22-r410a-systems","provider":"GearMustHave","version":"1.0","type":"link"}