The low-cost filter vessel includes a one-piece body design to eliminate the multiple welds typically used to fabricate bag vessel bodies. The vessels feature the standard "no tools required" four-bolt cover closure to provide safe, positive sealing, and the concave displacement cover prevents spills when accessing the vessel to change bags. The unique basket to body design provides a secure, no by-pass internal seal for operational integrity. The filter is available in three materials of construction: Carbon Steel, Type 304 SS, and Type 316 SS in both standard #1 and #2 bag vessel sizes. Available end connections are 2-inch NPT and 2-inch Flanged. Other options are also available. All units are rated for service at 150 psi at 250 degrees F and complete with adjustable legs.