Now Distributed by AAP (original design by Lustar, Patented by ATI)
AAP is the LARGEST AUTHORIZED dealer for the patented ATI Sponge Filter, selling unique models and parts not found at other non authorized dealers.
Why purchase anywhere else since they also have been a major supporter of this hobby for decades including copious amounts of FREE information?
As well these are American (USA) made with as much as 5 times the capacity of a given sponge size over Chinese knock offs, why purchase outside North America for an inferior product to save maybe $1 to $2?