Rusco FS-1-1-2-140 1.5 in. 140 Spin-Down Polyester Replacement Filter Rusco 1.5C Spin-Down Replacement Filter Cover. Rusco 1.5B Replacement Filter Head. Rusco 1-1/2-100-F Spin-Down Filter System. Rusco 1.5OR Replacement O-Ring Kit. Rusco SS1.5 Sun Shield is an optional accessory to block sunlight from coming through the clear