Includes a 500 GPH Basspirator II cartridge aerator pump. 7' of 3/4" flexi-hose. Adapts to tight installation contours. Valved aerating head with thru-wall fitting mounts fast and stable. Two 1-1/2" thru-hull fittings for overflow. Attractive dash switch with indicator light and built in fuse holder, and four hose clamps. Made in the U.S.A.