Domestos Sink & Pipe Unblocker only a £1.00 seems to be instore only they had these on the end of the aisles too not like the Cif Deal I have just posted.
This was the Hollingbury store, Its £3.98 @ Tescos.
Great just to have spares in the cupboard for this price,
Unblocks up to 2x FASTER than the market leader. Taking just 15 minutes to eliminate bathroom & many kitchen blockages. Kills germ breeding in the blockage and gets rid of nasty smells they cause. Uses same technology as plumbers products. For use in sink, shower and bath plugholes. Safe to use in all pipes and with septic tanks