Keystone’s exclusive line of bag filters for our GIANT® housings have a unique seal ring that ensures the most efficient means of bag filtration. All bags are 100% polypropylene or polyester with plastisol (PVC) seal ring and are available in micron ratings from 1 to 200. Polyester bags are recommended for hot water/high pressure applications.
Keystone also offers GIANT® economy bag filters with a conventional metal ring seal. These bags are a low cost alternative to our standard bags and are suitable for applications where PVC (Plastisol) seals cannot be used and/or where a conventional steel ring provides a sufficient seal for your process