its the japanese motor model. not sure how old, youll have to ask tzetela, hehe. i bought it from him and didnt end up using it.
ofblong, email sent. its hard cover. i'm in farmington hills
jimmythejewler, the sump wasnt made for any specific sized tank. some of those ratings are bs marketing schemes to sell products anyways. i designed the sump to fit with the stand i had also built. i see no reason why this sump couldnt be used on tanks up to 150gallons...the holes for the bulkheads might have to be modified to fit larger bulkheads for greater flow... it is made of acrylic and drilling through it is easy as pie. i planned on using 3/4" pipe on a 50gallon tank.