Lowest price we've seen to date! This Whirlpool Duet 4.2 CuFt Washer or Whirlpool Duet 7.3 CuFt Electric Dryer each drop from $799 to $536.40 during the Spring Black Friday Sale at HomeDepot.com. Plus, delivery is free. Our previous price low to date was $562, and we only see them drop to the under $500 range a few times each year. They're also one of the best-rated washers/dryers at Home Depot, with 96% of hundreds of reviewers recommending them. Sales tax is charged in most states.