Calcite refills of 5, 7, 10 or 25 kg for neutralisation boxes from 120 to 1500 kW, and pearls for the neutralizer up to 35 kW. Replace the whole filling as soon as the pH after the box drops below 6.5, in practice about once a year. Order the same weight as the original filling.

Not in stock: delivery 2 to 3 weeks after ordering.