1) Sheath: 201,204,301,304 grade of stainless steel,brass are available.

2) Inner tube: EPDM or natural pvc  material.

3) Nut Size: F1/2*F1/2 (dia.: 13-15mm=1/2"-3/4"). Brass nut & insert ,stainless steel socket

4) Working medium:water.

5) With good flexiblety ,highheat-resistant and long service life.

6) It can recover even after many times of bending,strong and durable.  

7) Working pressure: 5-15bar.