FiltersFast Compatible Replacement for Whispure 450 & 510 Filter Compat. for 1183054 HEPA Filter Whispure 450 & 510 Filter Compat. for 1183054 HEPA Filter Dimensions: 15-3/4"x18-7/8"x2" Replacement filter for Whirlpool 450 Whirlpool 510 Made in the USA!