<a href=showthread.php?s=&postid=9253134#post9253134 target=_blank>Originally posted</a> by reefkeeperrut
panworld is a pressure rated pump - reeflo is not. Panworld pumps are not silent but they push a lot of water agianst a lot of head with minimal heat exchange. Reeflo will push more water with less noise but not against head pressure.