Snapper OEM Replacement Blade 340-172
FITS MODELS: CZT19480KWV, CZT19481KWV, HZT21480BC, HZT21481BV, LT180H48FBV2 and LT18H48HBV2 
Rolled air-lift blade 
Length 16 1/2'' (419.1mm)
Centre Hole 5/8'' (15.9mm)
Width 2 1/2'' (63.5mm)
Thickness .203'' (5.2mm)