Single Bag Housings: #1, #2, #3 and #4 sizes Shelco ®BF series bag housings are manufactured of 304L or 316L stainless steel and carbon steel.Designed for 150 PSI (10 bar)and for temperatures to 300 °F.Protective poly coat over stainless steel is standard finish.Positive hold down spring and adjustable stainless leg assembly are standard features on the #1 and #2 size housings. Other products available: