Home / Water Treatment / AQ.232 Boiler Clean PH-Neutral 1Ltr AQ.232 Boiler Clean PH-Neutral 1Ltr £6.90 £8.28 (inc. VAT) Add to your Wish List Info Reviews PH-NEUTRAL - DOES NOT DO ANY HARM TO THE BOILER. REMOVES SCALE AND SLUDGE FROM BOILERS. USE 1lt in 30lt. USE WITH FLUSHING MACHINE. Product Code: AQ.232 Not yet reviewed Write an online review and share your thoughts with other shoppers! Be the first to review this product.