Models Thickener - 22m 34 944 3 Valve Knife HW ø12"-Newcon 23 800 0 Valve Knife model KGD ø16"-Clarkson 12 216 0 Valve Knife model KGD ø12"-Clarkson 9 233 0 Valve Pinch ø16" 5 153 0 Valve Pinch ø12" 2 126 0