Waterscapes International FilterFalls spillways is available in three convenient sizes. The BF1250 FilterFalls with 17" spillway and 1 1/2" Bulkhead is ideal for small ponds and/or water gardens with a 2,000 - 3,000 GPH pump flow. Each unit includes a FIPT bulkhead fitting, media bag, filter pad, removable bottom grate, liner attachment flange and a lifetime **on the enclosure.