D Scale 500Ml
14-day returns on all eligible orders
Contact us within 14 days of receiving your order to request a return.
Shipping information
Orders are picked, packed and dispatched from our Northampton warehouse.
- Free delivery to mainland UK addresses on orders of £40 or more.
- Orders under £40, and orders to Northern Ireland, have a delivery charge, shown at checkout before you pay.
- You will get an email with your tracking number once your order has shipped.
Full details are in our Shipping Policy.
Returns & warranty
Changed your mind? You can return an online order within 14 days of receiving it. Please contact us first for return instructions, then you have 14 days to send the goods back.
- Items must be unused, complete and in their original condition, with all accessories, instructions and original packaging.
- You arrange and pay for the return postage on change-of-mind returns. We refund the price of the item plus our standard delivery charge.
- Damaged in transit? Let us know within 48 hours of delivery - photos help.
- Faulty or wrong item? Contact us before sending anything back. Faulty goods are covered by your statutory rights.
Your statutory rights are not affected. Full details are in our Refund Policy, or email onlinesales@nn4online.co.uk.
D Scale is a safe, effective way to remove lime scale and rust deposits and to clean the interior surfaces of water heaters. It is non-corrosive and can be safely used on Stainless Steel, Copper, Brass, Plastics and leaves no odour. Periodic use of D Scale in the water heater will avoid mineral deposits building up, so improving the efficiency and extending the life of the equipment. D Scale contains citric acid which is a naturally occurring organic fruit acid especially found in fruits such as lemons and oranges. Calcium carbonate scale builds up layers and hard gritty deposits on the interior surfaces of a water heater. When left without treatment, lime deposits build up and will clog the interior pipes within the water heater, restricting flow and reducing operating efficiency. �descales and cleans complete hot water systems �removes lime scale and rust �safe to use on stainless steel, copper, brass and plastics �ideal for hot water systems in caravans, motor homes and boats �environmentally friendly and biodegradable