 Gully traps
 
			 			 Gully traps
            
           
          
           
The line of siphoned manhole covers is produced, depending on the model, in anti-shock PVC, ABS or polypropylene, with sizes ranging from 100 to 300 mm. per side; for particular designs First Plast also creates a series of products such as the corner siphon manhole, siphon manhole covers with nozzle and adjustable drain for flat roofs or roof gardens. The new lines of technical manhole covers with liquid sheath support mesh, with universal flange and with non-woven fabric are also available for modern building applications.