Reiwa O'zzone
Reiwa O'zzone
Reiwa O'zzone

Introducing the "Reiwa O'zzone" a proven performance as a refrigerant piping fitting, now evolving even further.
"Reiwa O'zzone" is a newly born entity inheriting the DNA of "O'zzone"
Fulfilling on-site requests to the fullest extent! Refrigerant piping has advanced to the next era.

\ Obtained patents domestically and internationally. /

Official Approval JCDA approval: JCDA0012 No.JC001220001
ISO 14903:2017
Use Application Air Conditioning Refrigerant (HFC)
Pipe Application JIS B 8607 Appendix-A Chanrt-A-1 : Thickness of copper and copper alloy for refrigerant piping
JCDA 0009 : Insulated copper pipes for refrigerant.
JCDA 0010 : Insulated copper pipes for general refrigerant applications
Nominal Diameter: 6.35, 9.52, 12.7, 15.88, 19.05, 22.22, 25.4, 28.58, 31.7, 38.1

Give it a try! Don't be afraid to try something new!

Fire-Free Method

- Safe & Secure Refrigerant Piping

  • Reiwa O'zzone : Cost-effective with simple installation!
  • (Fire-Free) Preventing the emission of soot and avoiding damage to the air conditioning unit : Maintenance-free!
  • Leak-proof, despite being a skill-free mechanical fitting!
  • Please try to use O'zzone with our 20 years of experience and the evolution.


  • 1

    Secure Fire-Free Method

    The new era is towards "Fire-Free Fittings".

    Read more
  • 2

    The material and labor costs are equivalent to the welding method

    The material and labor costs are almost the same compared to the welding method.

    Fire-free and easy to install, ensuring consistent quality for everyone.

    Read more
  • 3

    Reduce the burden of working at heights with poor scaffolding

    Making arduous works comfortable and speedy.

    Read more
  • 4

    No pull-out, no leakage : Claw Biting method (PAT.)

    Claw Biting method : Fitting won't be pulled out from the pipe once it bites.
    Double or triple backup for absolute leak-free assurance.

    Read more
■ To the media For this website, we generally accept introduction and coverage by various media outlets. If you would like to feature or introduce our website, please contact us. Additionally, if you are interested in creating a PR section for our company's website, we can provide content, images, and data for publication. Please feel free to contact us.
Top of page



8-22 kikusuicho, Kawachinagano 586-0012 Osaka, Japan
TEL +81-721-53-2221 FAX +81-721-53-2279

Copyright © 2012 Higashio Mech Co.,LTD. All Right Reserved.