To keep you iron in good working order and scale free we recommend 

That you change the filter accordingly to the different water types:

Hard Water - Every 6 Weeks

Medium Water - Every 3 Months

Soft Water - Every 6 months

NB: the above will vary depending on the amount of ironing per week .

******Please note will not fit ******

model SI11010N 

a return charge of £5.00 will be levied if ordered in error.