Amazon.com: IPW Industries Inc Compatible for WHKF-GD05 Whirlpool, 3M Aqua-Pure AP110 Filter, Grooved 5 Micron Water Filter Cartridges Set of 6, O-Ring for WHKF-DWHV, WHKF-DWH, WHKF-DUF : Tools & Home Improvement
Amazon.com: CFS COMPLETE FILTRATION SERVICES EST.2006 CFS Compatible with WHKF-GD05, 3M AP110 Filter, Grooved 5 Micron Water Filter Cartridges Set of 6, O-ring for WHKF-DWHV, WHKF-DWH, WHKF-DUF : Tools & Home Improvement
Amazon.com: AQUACREST AP110 Whole House Water Filter, Sediment Filter, 5 Micron, Replacement for 3M® Aqua-Pure AP110, Culligan® P5, APEC, GE FXUSC, Whirlpool®, Any 10" x 2.5" Home Water Filter, Pack of 6 :
SpiroPure Replacement for 3M Aqua-Pure AP110-2 / 5620405 10x4.5 Water Filters (20 Pack) - Walmart.com
3M™ Aqua-Pure™ Whole House Standard Diameter Water Filter Transparent Plastic Housing AP11T, 4 per case, 5529902 - CUNO Process Filtration Products - Other