500ml (1/2L) takes the GRUNT out of cleaning your boat

I bought this for my boyfriend and he said it was amazing cleaning his boat.👍

Worked very well, cleaned easily without a lot of scrubbing. Quite impressed.

This is very good and simple to use

It works well but as it says you may have to apply it more than once. The finish was good after applying once. I ran out of time to apply a second time but the finish was ok.

Wored really well, took a few attempts but easy to use and rinse off.

I was recommend to the product to gid rid on bird poop stains on white gel coat, it done a very good job but wasn't perfect as it didn't shift them all but so much stronger than boat wash, good product and very easy to use will buy again

Serious stuff! Im restoring a yaught that has been lying for nearly 10 years and Grunt has brought the hull and deck up like the first day, im amazed at how easy it was after having tried several other products without much effect, i'll most definately be buying it again, delighted with results

Didn’t work as I expected. Paint work exactly the same after following the instructions to the letter. The white hue on the boat paintwork still there.