Extra Strength Microbiological Blocks for use as channel blocks, excellent for reducing odours and blockages. When in use, flushing should be reduced to every 4 to 6 hours and certainly no more than once every 2 hours. Also for use in the discontinued Aquafree steel "cage" units (see image on right) fitted to some urinal troughs and slabs.

 

- 1 X bucket of 50 Gentworks Blocks designed to dispense beneficial microbes and other active ingredients.