Description
Smart solution for R410A valve cores
The CD3956 is a ball valve core removal tool built for 5/16" flare fittings. It safely removes leaking or damaged cores with zero refrigerant loss and includes a side port for pressure gauges or hoses.
Features and benefits
This tool is a top choice for working on modern R410A systems, offering fast, safe access and flexibility on-site.
- ✅ Removes leaky valve cores with no refrigerant loss
- ✅ Built-in ball valve for safe under-pressure operation
- ✅ For 5/16" SAE flare access fittings (R410A systems)
- ✅ 1/4" male flare side port connects to gauges or hoses
- ✅ Supports superheat measurement with #CD2019 and #CD3975
- ✅ Enables fast vacuuming using #CD2038 3/8 SAE adaptor
- ✅ Works with #CD3917 kit to remove and rethread damaged cores
- ✅ Vacuum rated to better than 50 microns
- ✅ Made in the USA for long-term reliability
What’s included
Everything you need to remove valve cores quickly and cleanly.
- ✅ 1 x CD3956 valve core removal tool
- ✅ 12-month manufacturer’s warranty
Specs at a glance
Engineered for the latest refrigerant systems and built to last.
- ✅ Fitting: 5/16" SAE (flare type)
- ✅ Side port: 1/4" male SAE flare
- ✅ Vacuum rating: Better than 50 microns
- ✅ Made in: USA
When to use this tool
The CD3956 is ideal for R410A systems where speed, safety, and refrigerant preservation matter. Use it for evacuations, superheat tests, or repairs without breaking system pressure.