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6th Gen
Koolance's Generation 6 quick disconnect couplings have improved durability through a redesigned valve structure, and can operate in a wider temperature range. They are available with EPDM or Viton seals, and are dripless upon disconnection up to 10kgf/cm2 (142psi) of pressure.
![QDT2 Series](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt2-74x74.jpg)
QDT2 Series
The QDT2 series includes couplings for 6mm (1/4 inch) internal diameter tubing.
![ID: 06mm (1/4in)](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt2_6mm-74x74.jpg)
![Threaded](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt2-74x74.jpg)
![QDT3 Series](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt3-74x74.jpg)
QDT3 Series
The QDT3 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_qdc_6th_qdt3_10mm-74x74.jpg)
![ID: 13mm (1/2in)](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt3_13mm-74x74.jpg)
![Threaded](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt3-74x74.jpg)
![QDT4 Series](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt4-74x74.jpg)
QDT4 Series
The QDT4 series includes couplings for 13mm (1/2 inch) ID tubing.
![ID: 13mm (1/2in)](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt4_13mm-74x74.jpg)
![Threaded](https://koolance.com/image/cache/data/categories/cat_fittings_qdc_6th_qdt4-74x74.jpg)
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