The filter will be used on our greywater system (it is a kind of residential and commercial water recycling system). It is basically collecting water from bath and sink and through the filter system to be reused for toilet flushing or gardening.We need filters for both residential and commercial units. The residential filters require the width (diameter) of 7,5cm or 8,5cm and length of 29,5cm. Hope you can provide your best price and specs based on 1000, 2000, 3000 per order. The blue cap you see on the picture is easily broken, we look forward to your suggestion to correct this problem. Thank you.PLEASE SEE ATTACHED FILE!Country:USA，
