as the title says, complete units, media and double taps included, just plug and play, the best filters available, they last forever. i got stuck with a few of these after i decided to sump my fishroom, $170ea +postage.
heres a link that has all the specifications written up:
http://www.thereefshop.com.au/index.php?main_page=product_info&products_id=21
heres a link that has all the specifications written up:
http://www.thereefshop.com.au/index.php?main_page=product_info&products_id=21