Line Sets With Quick Coupling For DIY Heat Pumps

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We are a manufacturer of HVAC spare parts and OEM products service for heat pumps in China for many years

Our Services

Offering the technical solution, tooling design, and testing application

Technical Solution

Our technical team provides product drawings and technical services including testing before mass production.

OEM & ODM Available

We support any form of OEM and ODM service for your products like mini-split line sets with quick coupling for DIY heat pumps.

Our Clients Say

I can confidently recommend Jenny Cheng and her company as name Grana Metal for trading and importing their special and high quality goods. I have always known Mrs. Cheng to be a person who is honest, and hard-working.

I know GRANA in the 2013 year and established long and happy cooperation. Anyway, Jenny cheng is the most communication efficiency among Chinese suppliers I have known, that help to save me a lot of working time.

DIY Line set is really excellent and save my a lot of money and I believe it and trust GRANA products

I am writing to recommend Jenny Cheng (Grana Metal) for long term cooperation and kind trading for years betweem her and our company.

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DIY Your Mini-split Air Conditioner

This easy-to-use line set greatly simplifies the installation process. It is pre-charged from our factory for the precise amount of refrigerant necessary for the 2-3ton universal heat pump split system.

which means that this line set requires no charging in the field and no vacuuming. it is 100% ready to go right out of the box and quicker installation than conventional linsets

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