Amazon has the 24-Pack Active Washing Machine Cleaner / Descaler Tablets (1-Year supply) on sale for $16 - 20% off coupon (check "Save an extra" box, eligible on first S&S order for this product) = $13 with free shipping on $25+ or with Prime (extra 5% off for 5+ S&S orders). In addition, the Garbage Disposal Cleaner tablets are on sale for $12.

• Compatible with GE, LG, Samsung, Whirlpool, Maytag, Electrolux, etc...