Push-fit Sonic Tube 
Features:
Push-fit sonic logging tube are thin black steel tubes available in different diameters with an enlarged end in a bell mouth shape. This makes the connection between 2 tubes an easy process and minimises labour cost.
The bell mouth and rubber gasket ensure a concrete-tight joint that will maintain the tube integrity and prevent the entry of foreign material.
Product benefits:
1,Easy assembly with Push-fit concept 
2，Fast and easy handling by operatives 
3，No preparation time
4，No power/welding/threading required 
5，No equipment required 
6，Easy visual inspection at site with the push-fit mark 
Size :
Outer Diameter (mm)     wall thickness (mm)        Length available (mm)
     50                     1.0-1.8                    3000-11800
     51                     1.0-1.8                    3000-11800
     53                     1.0-1.8                    3000-11800
     57                     1.0-1.8                    3000-11800