Will this work on my car's AC?

It fits R134a systems with a standard low-side service port, using the M14 or 1/2-inch ACME connection. It will not work on R1234yf systems, which use different fittings.

Can it tell me if my system has a leak?

No. It shows low-side pressure only. A pressure reading can hint at low charge, but finding a leak needs a leak detector or dye test.

What refrigerant does it take?

It is built for R134a cans with a screw-on top. Do not use it with R12, R22 or R1234yf refrigerant.

Do I need anything else to recharge?

You need a can of R134a refrigerant. For a proper job, a manifold gauge set and a leak check are worth having, since this reads the low side only.

How accurate is the gauge?

The maker states a 1.5-level accuracy error and a range up to 350 PSI. Treat it as a guide for topping up, not a substitute for a calibrated gauge set.

AC R134a Recharge Hose & Low Side Pressure Gauge for Cars

Best price now

$64.86at AxlChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Axl

AC R134a Recharge Hose & Low Side Pressure Gauge for Cars

Best price now

$64.86at AxlChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Axl

Ask our agent about this product

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Price facts

Last seen at $64.86 at Axl on Nov 8.

Our take on the AC R134a Recharge Hose & Low Side Pressure Gauge for Cars

A recharge hose with a built-in low-side pressure gauge for topping up R134a car AC systems. The 72mm gauge face reads up to 350 PSI, and the screw-on can fitting plus M14 and 1/2-inch ACME ports cover most US and European vehicles. A spring-loaded indicator and a safety valve aim to make DIY top-ups less messy than a plain charging hose. It suits owners doing occasional seasonal top-ups, not shops diagnosing leaks or doing full evacuations.

Best forDIY AC top-ups on R134a carsChecking low-side pressure before adding refrigerantHome mechanics with a can of R134a on handOlder US and European vehicles with standard service ports

Pros

Large 72mm gauge face is easy to read
Reads up to 350 PSI / 24 bar
Fits both M14 and 1/2-inch ACME service ports
Safety valve limits refrigerant venting on connect and disconnect
Rubber hose resists refrigerant exposure
Knob handle is rated for heavy repeated use

Cons

Low-side only; no high-side reading or system diagnosis
Gauge accuracy is stated as 1.5-level error, not lab grade
Not for R1234yf systems
Does not evacuate or leak-test the system

AC R134a Recharge Hose & Low Side Pressure Gauge for Cars prices at every store

AxlNew
In stockReturn policy
$64.86Checked Nov 8
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About the AC R134a Recharge Hose & Low Side Pressure Gauge for Cars

This R134a recharge hose comes with a low side pressure gauge. It is used to check refrigerant levels and top up a car's air conditioning system. It is made from aluminum, copper and rubber.

The gauge has a spring pressure indicator and reads up to 350 PSI / 24 bar. Its face is 72 mm across. The hose connects to an R-134a screw-on can at one end and to an R12/R22 service port connection at the other. A built-in safety valve prevents accidental refrigerant venting when connecting and disconnecting.

The knob handle is rated for over 50,000 uses. The fittings use M14 and 1/2" ACME threads, which suit both American and European vehicle standards.

Refrigerant: R134a
Material: Aluminum, copper and rubber
Color: Blue and gold
Gauge range: Low side, up to 350 PSI / 24 bar
Gauge accuracy: 1.5-level accuracy error
Gauge diameter: 72 mm / 2.83 in
Gauge height: 30 mm / 1.18 in
Overall length: 410 mm / 16.14 in
Hose length: 160 mm / 6.30 in each, left and right
Thread: M14, 1/2"
Hose fittings: 1/2" ACME
Connections: R-134a screw-on can connection, R12/R22 service port connection
Safety: Built-in safety valve
Package weight: Approx. 240 g / 8.46 oz
In the box: 1 x R134a recharge hose with low side pressure gauge

Questions and answers

Will this work on my car's AC?: It fits R134a systems with a standard low-side service port, using the M14 or 1/2-inch ACME connection. It will not work on R1234yf systems, which use different fittings.
Can it tell me if my system has a leak?: No. It shows low-side pressure only. A pressure reading can hint at low charge, but finding a leak needs a leak detector or dye test.
What refrigerant does it take?: It is built for R134a cans with a screw-on top. Do not use it with R12, R22 or R1234yf refrigerant.
Do I need anything else to recharge?: You need a can of R134a refrigerant. For a proper job, a manifold gauge set and a leak check are worth having, since this reads the low side only.
How accurate is the gauge?: The maker states a 1.5-level accuracy error and a range up to 350 PSI. Treat it as a guide for topping up, not a substitute for a calibrated gauge set.
Where is the AC R134a Recharge Hose & Low Side Pressure Gauge for Cars cheapest?: At Axl, for $64.86, as of our latest check.