A refrigerator with a water feed system to feed water to an icemaker installed in the refrigerating compartment and a dispenser installed to a front surface of a door of the refrigerating compartment, comprising: a filter and water tank assembly positioned within the refrigerating compartment of the refrigerator; a first water feed pipe to connect an external water source and the filter and water tank assembly to each other; a second water feed pipe to connect the filter and water tank assembly and the icemaker to each other; and a third water feed pipe to connect the filter and water tank assembly and the dispenser to each other, wherein the filter and water tank assembly includes: a filter connected to the first water feed pipe and serving to purify water fed from the external water source; a water tank in which the water, purified by the filter, is cooled and stored; wherein the purified water is cooled using interior cold air of the refrigerating compartment and a valve provided at a junction of a hose connecting the water tank to the second water feed pipe and the third water feed pipe to selectively supply the water from the water tank to the second water feed pipe or the third water feed pipe, characterized in that the filter and water tank assembly further includes a control valve mounted on a hose connecting the first water feed pipe and the filter to each other and serving to control supply of water from the external water source, and a case, wherein the filter, the water tank, the control valve and the valve are mounted to the case. a filter and water tank assembly positioned within the refrigerating compartment of the refrigerator; a first water feed pipe to connect an external water source and the filter and water tank assembly to each other; a second water feed pipe to connect the filter and water tank assembly and the icemaker to each other; and a third water feed pipe to connect the filter and water tank assembly and the dispenser to each other, wherein the filter and water tank assembly includes: a filter connected to the first water feed pipe and serving to purify water fed from the external water source; a water tank in which the water, purified by the filter, is cooled and stored; wherein the purified water is cooled using interior cold air of the refrigerating compartment and a valve provided at a junction of a hose connecting the water tank to the second water feed pipe and the third water feed pipe to selectively supply the water from the water tank to the second water feed pipe or the third water feed pipe, characterized in that the filter and water tank assembly further includes a control valve mounted on a hose connecting the first water feed pipe and the filter to each other and serving to control supply of water from the external water source, and a case, wherein the filter, the water tank, the control valve and the valve are mounted to the case. a filter connected to the first water feed pipe and serving to purify water fed from the external water source; a water tank in which the water, purified by the filter, is cooled and stored; wherein the purified water is cooled using interior cold air of the refrigerating compartment and a valve provided at a junction of a hose connecting the water tank to the second water feed pipe and the third water feed pipe to selectively supply the water from the water tank to the second water feed pipe or the third water feed pipe, characterized in that the filter and water tank assembly further includes a control valve mounted on a hose connecting the first water feed pipe and the filter to each other and serving to control supply of water from the external water source, and a case, wherein the filter, the water tank, the control valve and the valve are mounted to the case.