R134a Refrigerant

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Need to recharge your vehicle's air conditioning? Learn how in 8 easy steps

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R134a Refrigerant

Re-charge your vehicle's air conditioning system and keep the cold air flowing with R134a refrigerant. This cooling agent ensures that your ride's AC system is working properly. A telltale sign that your system is not working properly and in need of a recharge is if the system blows hot air while the AC is on.

When your car blows warm air on the coolest setting, it probably needs a recharge. We stock cans and recharge kits from trusted brands. We also stock bullet piercing valves and more.

What is R134a?

R134a is a refrigerant commonly used in automotive AC systems. It is a fluid that can easily be boiled into a vapor and condensed back into a liquid so the system can use evaporation and condensation to cool your cabin air.

How Does R134a Refrigerant Work?

The AC compressor moves and compresses the refrigerant molecules into a smaller volume, converting kinetic energy into heat. R134a, now hot and dense, is routed to the condenser, where fans blow across the system lines to cool it down, kind of like blowing on hot food to cool it off. It condenses as it cools, so it then is sent to the evaporator where it is made back into a vapor again.

What are the Most Common R134a Can Sizes?

We have R134a refrigerant for sale in cans that range from 3 ounces to 18 ounces. The smaller cans often lack accessories, such as a charging hose and a gauge. These components are featured on larger cans that weigh 18 ounces or more. These accessories are only needed if you don't have AC tools, like a pair of manifold gauges.



What Features Come with Refrigerant Products

Some of our refrigerant products by AC Pro have a formula that stops leaks. A leak stop agent can be beneficial as it has the ability to seal small leaks that can escape from an air conditioner. This can help if you have a leak from a component that is cost prohibitive to replace.

UV leak detection is another feature found in some of these products. This feature makes maintenance easier because it gives technicians an edge during inspections. A refrigerant that has a UV leak formula is made with a fluorescent dye. If this mixture escapes and seeps on surfaces outside of an air conditioning unit, it will leave a stain, which can only be seen with a leak-detection flashlight.

Many products include a charging hose. The hose makes the process of adding refrigerant to an air conditioning system more convenient if you don't have tools. The total charging time varies depending on the state of a refrigerant chamber. If the chamber is empty, you can typically refill it with a charging hose in less than 15 minutes. Many brands attach a reusable hose on the side of the can along with a low-side pressure gauge.

R134a is a powerful so that your vehicle uses to keep the cabin interior cool all year round. If your cabin is a little warmer than you’d like, it is likely time for an AC recharge. Buy R134a refrigerant online and pick up your AC recharge can in an AutoZone near you today.