The Pleat+Plus Seal-TITE is an all-metal design, bottom-load unit, which is designed to fill the gap for bottom load filters in temperatures from 200°F to 375°F. The seal at the interface with the bag cup can be securely tightened without worry of cracking or fabric impingement. Various media finishes address individual filtration needs with efficiencies of 99.99% at 0.3-0.5 microns. These filter designs have been used in a variety of dust-collection and process applications.