Amazon has the LG 6-Month / 200-Gallon Capacity Replacement Refrigerator Water Filter (NSF42, NSF53, and NSF401) for $38 - 20% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $30 with free shipping. Removes 99.99% of cysts, 99% of asbestos and almost all mercury, lead, and benzene.