Q. What is the difference between screen and filter? A. Now that you have this image, you can see that in the wastewater treatment process the screening is really the preliminary step that removes 'larger' organic matter, and then the filtering process is one that further removes any impurities. Q. What does a screen do in a water filter? A. A screen is a technology, within filters, that is embedded to serve two primary purposes – as a form of large strainer used in water intakes and wastewater treatment, and also as a means to separate solid particles of varying sizes that are mixed together. Screen Filter Available Screen Filter Available in Rajkot Screen Filter Available in Vadodara Screen Filter Available in Ahmedabad Screen Filter Available in Gujarat Screen Filter Available in Madhya Pradesh Screen Filter Available in Pune Screen Filter Available in Bangalore Screen Filter Available in Surat Screen Filter Available in Vapi Screen Filter Available in Bharuch Screen Filter Available in Punjab Screen Filter Available in Delhi Screen Filter Available in Bihar Screen Filter Available in Tamil Nadu Screen Filter Available in Chennai Screen Filter Available in Bhavnagar