These grills for excrement pits are made of plastic - easy to mount and demount, because one just has to stick them into each other.
The perfect hygiene is provided by a smooth surface and big openings in the grill (50x25mm).
Measurements: 60 x 60cm
Price per piece.

Also available: PVC-leg for the grills:
Recommended for the simple installation of the waste ditch.
Additionally you need (galvanised) flat-bars.
Because these can't be (well) sent, you should by them locally.
You need flat-bars in 5mm and 8mm - assembly-mainstruction is attached.
Max.-Height of the leg: 73cm
Price per piece/leg.