Hi, we are looking to replace a filter basket for our swimming pool. Currently the filter has 3mm holes perforated throughout the basket and we were looking at a larger holed basket, around 12mm. Could you supply me with any information/cost for this type of product. Obviously some manufacturing will need to be done to fit but if a cylindrical 12mm perforated tube of 350mm diameter were available would help the process. Please send any information that could help.