Amazon has the Drano Max Gel Drain Clog Remover & Cleaner (32 oz) for $4.67 - 20% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $3.51 with free shipping on $35+ or with Prime (extra 15% off for 5+ subscribe and save orders).