Ketofa R-1234YF Refrigerant Charge Hose Kit — LH 1/2" ACME Can Tap with 200 PSI Gauge, Low-Side Adapter

Ketofa R1234YF Recharge Hose Kit is a purpose-built charging line that connects 1/2" ACME left-hand R-1234YF sealed cans to a vehicle or residential A/C low-side port while measuring pressure with a 200 PSI gauge.

This charging hose assembly is designed specifically for R-1234YF left-hand (LH) sealed cans and pairs a durable rubber hose and metal fittings with a left-handed 1/2" ACME can opener tap and a low-side adapter. It helps you add refrigerant or monitor low-side pressure during service while avoiding incompatible can interfaces. Read on for precise specs, safe-use notes, and practical tips for correct charging and pressure checks.

How does the kit connect to R-1234YF sealed cans and the vehicle low side?

The kit uses a left-hand threaded 1/2" ACME can opener tap made to pierce and control R-1234YF LH sealed cans, and a low-side R-1234YF adapter that mates to the service port. The hose assembly carries the refrigerant from the can to the system and provides pressure feedback through the gauge.

• Left-hand 1/2" ACME can opener tap fits LH R-1234YF sealed cans only.
• Dedicated low-side R-1234YF adapter secures to vehicle/home A/C service port.
• 200 PSI color-coded low-side gauge displays charge pressure during fill.
• Hose materials and fittings rated for refrigerant pressure ranges.

What are the physical specifications and pressure ratings?

This hose kit combines compact reach with service-grade pressure tolerance: the overall assembly length and threaded dimensions are intended to balance maneuverability and robust connection under refrigerant pressure. The gauge and hose are specified to monitor and withstand typical low-side service pressures.

• Total kit length approximately 15.4 inches for convenient handling.
• Each flexible hose section about 15 cm long, adapter head length about 17.6 cm.
• Gauge range up to 200 PSI for low-side pressure monitoring.
• Working/pipe pressure range listed at 600–3000 PSI for material durability.

Which cans and systems are compatible, and what should I avoid?

The Ketofa hose kit is compatible only with R-1234YF left-hand (LH) sealed cans. It is not suitable for self-sealing cans, R-134A sealed cans, or other refrigerant can types. Using incompatible cans can lead to imperfect seals and leakage at the connection.

• Use only R-1234YF LH sealed cans that accept a 1/2" ACME-LH tap.
• Do not use with R-1234YF self-sealing cans or R-134A sealed cans.
• Confirm the can’s thread type and sealing method before attempting connection.
• Inspect fittings and O-rings for damage before each use to reduce leak risk.

How should I use the gauge and hose safely during charging?

Follow basic refrigerant handling best practices: wear gloves and eye protection, work in a ventilated area, and follow vehicle/manufacturer charging specs. The gauge shows low-side pressure so you can add refrigerant incrementally and avoid overcharging.

• Attach the low-side adapter to the system’s service port, then secure the can tap to the sealed can.
• Open the can tap slowly and monitor the 200 PSI gauge while adding refrigerant.
• Add refrigerant in short bursts and recheck system pressures and temperatures.
• Close the tap, relieve any residual pressure per local guidelines, then disconnect.

Who is this for: The Ketofa R1234YF Refrigerant Charge Hose Kit is intended for technicians, experienced DIYers, and maintenance professionals who work specifically with R-1234YF left-hand sealed cans and need a straightforward low-side charging and pressure-monitoring solution. It is not suitable for users who lack familiarity with refrigerant handling or for systems and cans that do not match the LH 1/2" ACME R-1234YF specification.