Gully Trap is a device that traps the water, often buried in the ground into which water is piped before it goes into the sewer.  The foul smell is trapped behind the water thus protecting your bathroom from bad odor.  It is also called Floor trap in some countries and design only for waste water or soap water flowing in and out of the Gully.  

The device is supported by test certificates from reputable institution. 

Cramer Gully Traps comes in 

A series

B series
M series

Odor traps, drains and other accessories are available 

Call us for more details