Surprising Insight: Whirlpool W001 Filter Showdown… Fresh Water, Easy Install! In the quest for crisp, clean water, the Whirlpool W001 filter (or W10295370A) stands as a go-to for countless households. But when presented with the choice among 2-PACK, 3-PACK, or 4-PACK options, the decision might seem more confusing than helpful. However, what one might assume as a more convenient bulk buy could, in fact, yield an unexpected revelation: the smaller packs can be just as cost-effective—and even more refreshing—than their larger counterparts. Here’s why. The true test lies not just in price per unit, but in usage: families who consistently replace their filters every six months might find that purchasing in monthly increments (1-pack) aligns perfectly with their needs, reducing waste and unnecessary costs. Meanwhile, those who buy in bulk (4-pack) might end up discarding unused filters long before they expire, negating the savings. As it turns out, listening to your own routine—rather than sticking to spreadsheets or sticker prices—can unlock the secret to fresh water with surprising efficiency. Keep reading to uncover the Perks!