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5th Gen
Koolance's Generation 5 quick disconnect couplings are dripless upon disconnection up to 10kgf/cm2 (142psi) of pressure.
![QD1H Series](https://koolance.com/image/cache/data/categories/cat_fittings_qd1-m_threaded-74x74.jpg)
QD1H Series
The QD1H series includes couplings for 3mm (1/8 inch) internal diameter tubing.
![ID: 03mm (1/8in)](https://koolance.com/image/cache/data/categories/cat_fittings_qd1h-m_hose03-74x74.jpg)
![Threaded](https://koolance.com/image/cache/data/categories/cat_fittings_qd1h_threaded-74x74.jpg)
![QD2H Series](https://koolance.com/image/cache/data/categories/cat_fittings_qd2h-m_threaded-74x74.jpg)
QD2H Series
The QD2H series includes couplings for 6mm (1/4 inch) internal diameter tubing.
![ID: 06mm (1/4in)](https://koolance.com/image/cache/data/categories/cat_fittings_qd2h-m_hose06-74x74.jpg)
![Threaded](https://koolance.com/image/cache/data/categories/cat_fittings_qd2h-m_threaded-74x74.jpg)
![QD3H Series](https://koolance.com/image/cache/data/categories/cat_fittings_qd3h-m_threaded-74x74.jpg)
QD3H Series
The QD3H series includes couplings for 10 to 13mm (3/8 to 1/2 inch) ID tubing.
![ID: 10mm (3/8in)](https://koolance.com/image/cache/data/categories/cat_fittings_qd3h-m_hose10-74x74.jpg)
![ID: 13mm (1/2in)](https://koolance.com/image/cache/data/categories/cat_fittings_qd3h-m_hose13-74x74.jpg)
![Threaded](https://koolance.com/image/cache/data/categories/cat_fittings_qd3h-m_threaded-74x74.jpg)
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