![HARDNESS SPRING](http://www.donperusa.com/cdn/shop/products/141100014_1024x1024.jpg?v=1481302484)
XC112/ XC224/ XC336/XHC224
HARDNESS SPRING
141100014
Sale price
$4.50
Regular price
$6.00
This goes in the back of the machine, behind the plastic upper cover. It controls the hardness of the mix.