12 Respironics Remstar Pro/Plus UF+ 2 FOAM Filters
Respironics Remstar Pro Plus Compatible NEW IN SEALED PACKAGEDimension: 1-1/2" X 3-5/8"  Part Number 1005945 x 6 = 12 Ultra Filters Part Number 1005964 = 2 Foam Pollen Filters