American Pond "Medium Professional Grade" Pond Kits

American Pond "Medium Professional Grade" Pond Kits Contain the Following Main Components
Biological Waterfall - 19" Waterfall with Lifetime Warranty on body Pond Skimmer - 6" Weir 4000 gph with Lifetime Warranty on body 4000 GPH Hybrid Pump - 3 Year Warranty OR 3300 GPH Shinmaywa Direct Drive Waterfall Pump - 2 Year Warranty 1-1/2" x 25' Flexible PVC Pipe	PVC Primer and PVC Cement 1-1/2" Check Valve Assembly Black Waterfall Foam 12oz Liner Patch Starter Water Treatment Kit

What is the difference between Hybrid and Direct Drive Pumps?
Medium Professional 8' x 11' Kit	Medium Professional 11' x 11' Kit	Medium Professional 11' x 16' Kit
All Main Components 12' x 15' Firestone 45 mil EPDM Pond Liner - 20 year warranty 12' x 15' Underlayment 4000 GPH Hybrid Energy Saving Pump $1174.99 Quantity: OR 3300 GPH Shinmaywa Direct Drive Professional Pump $1349.99 Quantity: FREE SHIPPING	All Main Components 15' x 15' Firestone 45 mil EPDM Pond Liner - 20 year warranty 15' x 15' Underlayment 4000 GPH Hybrid Energy Saving Pump $1224.99 Quantity: OR 3300 GPH Shinmaywa Direct Drive Professional Pump $1399.99 Quantity: FREE SHIPPING	All Main Components 15' x 20' Firestone 45 mil EPDM Pond Liner - 20 year warranty 15' x 20' Underlayment 4000 GPH Hybrid Energy Saving Pump $1299.99 Quantity: OR 3300 GPH Shinmaywa Direct Drive Professional Pump $1474.99 Quantity: FREE SHIPPING