This is the popular Filter Combo Pack. It is for the DeVilbiss iFill Series. This Package Includes: 1 Extended Life Filter - LL205 1 Foam Cabinet Filter - F705 1 Bacteria Filter - BF600
This Foam Cabinet Filter measure approx. 5 5/8"W x 3 5/8"L x 5/8"H and it replaces DeVilbiss 515DZ-604. It will fit all of the following DeVilbiss Oxygen Concentrators: 505 DS