4 x 1 Litre of Pro-Kleen Sink & Drain Blitz - Plughole/Drain Unblocker - Dissolves Hair & Grease - Super Strength Formula: up to 16 Treatments

I normally use One Shot for cleaning drains and sinks, but since I can no longer get that I chose ProKleen instead. It get rid of bad smells inside sinks, drains and toilet for sure, but as an unblocker I've never used it for that. I bought it to remove bad odour from time to time and I've been using this product for just over a year and can honestly say it works.There is a slight odour, but it's to be expected as a cleaning product. It's nowhere near as bad as bleach though, and I use that in the toilet everyday.I only wish the bottles were bigger, maybe 2 litres per bottle, using less plastic in the environment maybe.At 2L per bottle it would be two bottles delivered instead of 4.So overall as a product for getting rid of bad odour it's a plus ➕ from me, recycling and value for money I believe more work needed.