Flexible AC Charging Hose with Pressure Gauge – R134a/R12/R22
€21,95 EUR
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Flexible AC Recharge Hose with Pressure Gauge – R134a/R12/R22 (39 cm)
Short Version – Quick Overview
This flexible AC recharge hose for cars is a compact and robust tool for basic diagnosis and refilling of refrigerant in vehicles using R134a, R12, or R22. The hose is made of elastic rubber for easy handling in confined engine compartments and features an integrated pressure gauge with a working range of −30 to 250 PSI, allowing you to monitor low-side pressure during operation. The total length is 39 cm (≈15.4"), a good compromise between reach and control.
Thanks to 16-pin universal compatibility with common AC refill valves and support for multiple refrigerant types, the hose is suitable for use with standard refill kits, cans, and service equipment. It simplifies connection to the low-side service port, reduces the risk of leakage during connection/disconnection, and makes it easy to read pressure in real-time. Note that modern car models widely use R1234yf; this hose is not intended for R1234yf systems unless a proper adapter and approved equipment are used.
Important: Handling refrigerants requires accuracy and compliance with local laws. Never vent refrigerants to the atmosphere. In case of major faults, suspected leaks, or uncertainty – contact a certified AC technician. For additional tools, please see our diagnostics and tools pages. 🔧
Introduction
A functional air conditioning system requires the correct refrigerant amount and system pressure. This recharge measuring hose is designed for quick connection to the car's low-side service port and provides direct feedback via the pressure gauge during testing, refilling, or function checks. The flexible rubber body reduces stress on the connection and allows you to work around components in the engine compartment without twisting or kinking connections.
The product is intended for R134a, R12, and R22 (see Compatibility section) and is suitable for simpler tasks such as check measurements and minor top-ups when the system is otherwise sealed and functional. For comprehensive service (e.g., evacuation, vacuum test, leak detection, and precise refilling with a scale), a professional AC service station should be used by a qualified technician.
Specifications
Item: Auto Air Conditioner Fluorine Tool (recharge hose with pressure gauge)
Fittings: Standard connections for common car AC service ports (low-side)*
Temperature Environment: Intended for vehicles/engine compartments
Usage: Basic pressure check and low-side refilling
*Note: Exact threads/fitting types may vary per batch/market; use appropriate adapter if needed.
Features & Applications
Flexible connection: Rubber hose makes it easy to reach the low-side port in confined spaces.
Integrated pressure gauge: Read low-side pressure in real-time (−30 to 250 PSI) during operation.
Multi-refrigerant: Supports R134a, R12, and R22 for older/light AC applications.
Universal use: Compatible with common refill cans and service equipment (via correct adapter).
Quick troubleshooting: Confirm low-side pressure levels for cooling problems before major intervention.
Benefits – Why Choose This Hose?
Compact: 39 cm provides good reach without cable clutter.
Durable: High-quality rubber hose for repeated workshop use.
Clear measurement: Wide pressure gauge range for common low-side pressures.
Cost-effective: Simple solution for basic checks and minor top-ups.
Versatile: Supports three refrigerant types in one solution.
Compatibility & Refrigerants
The hose is intended for vehicles and light AC applications using R134a, R12, or R22. Note: R1234yf (common in many modern cars) requires separate, certified equipment and its own connections/adapters – this product is not intended for R1234yf without proper, approved adaptation. Never mix different refrigerants.
Manual & Step-by-Step Guide
Preparations
Work in a well-ventilated area. Use safety glasses and gloves.
Identify the refrigerant in the vehicle (sticker in the engine compartment). Use only matching refrigerant.
Inspect hoses/fittings for damage. Replace defective components before refilling.
Locate the low-side service port (usually the larger port with lower working pressure).
Connection
Ensure the engine is off and the AC is turned off.
Attach the hose fitting to the low-side port. Lock the fitting according to its design.
Check that the pressure gauge reads ambient pressure (~0 PSI) or slightly negative before starting.
Measurement & Addition (basic)
Start the engine and set the AC to max cool, fan high, recirculation active.
Read the low-side pressure on the pressure gauge. Compare with reference for current refrigerant/ambient temperature (general guideline for R134a on a warm day can be ~25–45 PSI, but follow the vehicle manufacturer's specification).
If the level is low: Connect the correct refrigerant can/equipment to the hose's charging end (according to the can's instructions).
Dispense in small amounts at a time. Monitor pressure and cooling performance. Do not overfill.
Stop dispensing when specifications are met. Allow the system to stabilize for a couple of minutes and recheck.
Disconnection
Turn off the AC and engine. Wait until the pressure has stabilized.
Loosen the connection from the low side without releasing refrigerant.
Replace the dust cap on the service port. Store the hose clean and dry.
NOTE: This guide describes basic handling. For exact quantities, a scale and often full service with vacuum testing are required.
Safety & Legal Requirements
Never vent refrigerants to the atmosphere. Follow applicable legislation.
Always use the correct refrigerant and correct fittings/adapters.
Do not overfill – too high pressure can damage the compressor and components.
R12/R22 are older types; handling may be regulated or prohibited for private individuals in some countries.
In case of suspected leakage – have the system serviced professionally. Adding refrigerant to a leaking system is not a sustainable solution.
Frequently Asked Questions (FAQ)
1. Does the hose fit all cars?
It is intended for vehicles with a service port and R134a/R12/R22 refrigerant. R1234yf requires different equipment.
2. Can I use it on the high side?
No, this type is typically used on the low side. Never connect to the high side unless you have correct professional equipment.
3. How much refrigerant should I fill?
Follow the car's specifications (label/workshop manual). For exact quantities, a scale and full AC service are required.
4. What does −30 PSI on the pressure gauge mean?
The scale includes vacuum (−30 inHg≈−1 bar) for testing. During normal operation, you will read positive low-side pressures.
5. Is the hose leak-proof?
Yes, with correct use. Always check gaskets and properly lock connections.
6. Does it work with cans from the store?
Often yes, but thread type/adapter may vary. Ensure compatibility before use.
7. Can I mix refrigerants?
No. Never mix. Evacuate, vacuum test, and fill the correct type at a professional when changing refrigerants.
8. The system isn't getting cold despite correct pressure?
The cause could be another fault (fan, expansion valve, dryer filter). Have a technician troubleshoot.
9. Is R12/R22 permitted?
Regulations vary. Check local laws; often, certification or conversion to R134a/R1234yf is required.
10. Do I need special adapters?
It may be required depending on the port/country/supplier. Only use approved adapters for the respective refrigerant.
Tips & Best Practices
Pre-measurement: Check low-side pressure before adding refrigerant.
Small steps: Dispense a little at a time and allow the system to stabilize between steps.
Clean connections: Wipe the port clean before connecting to avoid dirt in the system.
Temperature reference: Compare pressure to ambient temperature and OEM specs – not just the pressure gauge's color zones.
Document: Note the date, pressure, and quantity for future service history.
Package Contents
1 × Flexible AC Recharge Hose with Pressure Gauge (39 cm)
— (Refrigerant, can, and extra adapters are not included)
Important Notices & Responsibility
Use is at your own risk. Always follow manufacturer's instructions and local legislation.
This product is intended for basic handling. Full AC service requires professional equipment.
Mycket responsiv och bra service och snabb leverans. Har en KTM 690 enduro 2021 Euro 5, då passar denna: Honda MC adapterkabel 6-pin → OBD2 16-pin × 1
Hej Martin, vad roligt att höra att du är nöjd med servicen och leveransen! Hoppas adaptern fungerar perfekt för din KTM 690 Enduro. Tack för att du valde oss!
Allt gick mycket smidigt, från beställnin till betalning och leverans.
Tack för ditt positiva omdöme! Vi är glada att höra att din upplevelse med vår produkt var smidig från början till slut. Vi strävar alltid efter att ge våra kunder en smidig och enkel shoppingupplevelse.
Helt otroligt bra.
Snabb frakt, snabb respons, bra pris och precis så som man vill ha det.
Tack så mycket för din positiva recension! Vi är glada att höra att du är nöjd med våra snabba fraktmöjligheter, pris och respons. Det är precis vad vi strävar efter att erbjuda våra kunder.
