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The Quest SZ345-1 is an 18-ounce R-134a recharge kit for cars and light trucks with R-134a AC systems. It holds about 17 ounces of refrigerant plus 1 ounce of additives: a leak sealer for rubber hoses, O-rings and fittings, an acid neutralizer and a moisture reducer, marketed as Cool Boost. A reusable charging hose with an integrated gauge lets you watch low-side pressure while you fill. It is a top-off kit for systems that are low from minor seepage, not a substitute for a full recovery and recharge by a certified technician. Compared with plain cans, it bundles the sealer and gauge; compared with professional service, it cannot pull a vacuum or measure the exact charge.
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The Quest SZ345-1 is an 18-ounce R-134a refrigerant recharge kit for automotive air conditioning systems. It contains about 17 ounces of R-134a refrigerant and 1 ounce of additives made with Cool Boost technology, which is intended to help the AC produce colder output.
The additives are designed to seal common leaks in rubber hoses, O-rings and fittings. They also neutralize acid buildup and reduce moisture contamination in the AC circuit. A reusable charging hose with an integrated gauge lets the user monitor system pressure while recharging.
The kit is for passenger vehicles and light trucks with R-134a AC systems. It suits low-side service port recharging when a system is low on refrigerant from minor seepage through rubber hoses, O-rings or fittings. It is not compatible with R-1234yf or other refrigerant types, so check the vehicle's refrigerant type before use. Connect to the low-side service port only, never the high-side port, and wear eye and skin protection. A system with a significant leak or one that has been fully discharged needs recovery and evacuation by a certified technician with EPA Section 609 certification before recharging.
