Simplicity upright filter SF6-2 $10.95 Simplicity Upright filter SF5-2 $10.95 Simplicity 7 series filter SF7-2 $12.95 Simplicity Canister HEPA filter SF-I2 $30.95 Simplicity S-class Hepa filter SF-I3 $41.95 Synergy upright filter set SF9U-1 $39.95 Simplicity jack HEPA filter kit SF-I1 $28.95