Drain Unblocker
Cheapest drain unblocker today: Dunnes at €1.99/l, 44% under SuperValu
Best value pick: 151 Pro Strength Drain Gel 900ml(0.9l) at €1.79
- 19
- items tracked
- 5
- retailers on shelf
- 20 hr ago
- last checked
Ranked by price per litre, so a big pack and a small one can be compared like for like.
Each shop's best value
The keenest price per litre at each supermarket, and what it comes on.
Dunnes
Cheapest per litre151 Pro Strength Drain Gel 900ml€1.790.9l
€1.99/lSuperValu
€3.58/lAldi
Sink & Drain Unblocker€1.790.5l
€3.58/lTesco
Tesco Sink & Drain Unblocker 500Ml€1.890.5l
€3.78/lLidl
Sold by the item here, with no weight published, so not ranked per litre.€3.49 each
Every option, best value first
All 18 comparable listings, divided by pack size so a big pack cannot hide behind a small ticket.
- 1151 Pro Strength Drain Gel 900mlDunnes0.9l€1.79€1.99/l
- 2Sink & Drain UnblockerAldi0.5l€1.79€3.58/l
- 3
SuperValu Sink & Drain Unblocker (500 ml)SuperValu0.5l€1.79€3.58/l - 4Tesco Sink & Drain Unblocker 500MlTesco0.5l€1.89€3.78/l
- 5
Duzzit Drain Away Drain Unblocker 400mlDunnes0.4l€1.79€4.48/l - 6
Mr Muscle Power Gel Drain Unblocker (1 L)SuperValu1l€7.30€7.30/l - 7
€7.30€7.30/l - 8
Brillo Multi-Purpose Drain Unblocker (600 ml)SuperValu0.6l€4.50€7.50/l - 9
€4.50€7.50/l - 10
€4€8/l - 11
€8€8/l - 12
Mr Muscle Drain Foamer (500 ml)SuperValu0.5l€4.45€8.90/l - 13
€8.99€8.99/l - 14
Mr Muscle Drain Unblocker Gel (500 ml)SuperValu0.5l€4.99€9.98/l - 15
€5€10/l
Show all 18 optionsShow fewer
- 16
€5€10/l - 17
€5€10/l - 18
€5€10/l
Also on this shelf
These come in a size we cannot express per litre, or carry a pack size we do not trust, so they are ranked by ticket price instead of being mixed into the value list.
- 1
€3.49
Common questions
Which supermarket is cheapest for drain unblocker?
Dunnes, at €1.99/l for 151 Pro Strength Drain Gel 900ml. That is the cheapest drain unblocker per litre of everything the five supermarkets list today; the last price check ran 20 hr ago.
Why compare per litre?
Because a big pack and a small one are not the same purchase. Dividing each price by its pack size puts every option on one scale, so the cheapest ticket and the best value stop being the same question. Only offers priced per litre are ranked together; the rest are listed separately rather than mixed in.
Most of these are own-brand. How is that a comparison?
Most supermarket items are own-brand, so the honest comparison is the shelf: every option in a category, ranked by what it costs per unit, each row naming its shop. Branded items sold in more than one supermarket still get a single page comparing them directly.