Click to Subscribe! Click to subscribe to posts and receive them in your inbox! Diaper Covers $13.95 – $15.95 Select options Wondermill Round Filter $4.95 Add to cart Black Berkey® Purification Elements (Pack of 2)Rated 5.00 out of 5 $166.00 Add to cart Berkey Fluoride/Arsenic Filters (Pack of 2) $70.00 – $135.00 Select options Posted in Uncategorized.