The normal twin packs are 1/3 off, however they are on the shelf with a an extra bottle free i.e three bottles for £3.90.
NEW UNIVERSAL PACK: FITS ALL DISHWASHERS!
You may think you dishwasher is clean, because it looks clean. But with every wash, grease & limescale build-up in the vital parts of your dishwasher that are hard to see: Filter, spray-arms, pipes, water pumps, and drains. New Finish Intensive Clean & Care actively cleans all vital & hidden parts of your dishwasher to maintain cleaning performance. The blue layer eliminates grease and the transparent layer eliminates limescale. A cleaner dishwasher means cleaner dishes. Can also be used to clean the rubber door seal.
No. 1 RECOMMENDED.
Electrolux. BOSCH. Smeg. INDESIT. Hotpoint. SIEMENS.