Combined stationary hydro test machine for wall assembly with 3 connections. Suitable for testing of Powder- CO2-fire extinguishes, breathing air apparatus, diving bottles, cylinders etc. The unit consists of 3 testing connections 1,5 m each and equipped with quick-type coupling, 3 plug-in adaptors large conical (25E) and 3 plug-in adaptors small conical (17E), 3 adaptors M30x2, lockable ball valves for single tests.