This is a helical coil heat exchanger used in indirect water heater. 

 - Material: 304 Stainless Steel (316L, 321, etc. Stainless Steel available to order)
 - Tubing Dimensions (O.D.×Thickness, in./mm): 0.47" × 0.028"/ 12mm × 0.7mm
 - Coil Dimensions(Coil O.D x Length x Turns in./mm): 4.72" x 20.47" x 60 / 120 x 520mm x60 


Feature:
- Made from one single tube without any intermediate connections, leading to better anti-leaking performance
 - Compact design with high heat transfer efficiency

Note: 
- Customization available for specified coil shape