Powerful and convenient, these air pump systems will operate on any 110 volt standard household current, The ideal system for keeping fish indefinitely, this rubber based mount operates quietly and can be utilized with fresh or salt water, Complete system includes pump, airline tubing, and weighted air stone, 110 Volts, runs on standard household current, Powerful, inexpensive air pump systems to keep bait indefinitely, No batteries required, Produces 99, 5 saturation of dissolved oxygen, Rubber base mounted pumps for quiet operation, Weighted glass bead air stones, and silicone airline tubing included, Complete ready to use systems, Designed for fresh and saltwater use, Every unit is tank tested to assure quality, Dimensions: 8, 2L x 3W x 5H, SKU: SPTMN3970