the extension tubing 126 preferably is made from cast or hot forged brass 0030 fig8 a and 8b show a fourth embodiment of the ball valve unit of the present invention the fourth embodiment is substantially similar to the third embodiment and includes a wing shaped handle 200 as shown in fig8 a and 8b 0031 fig9 a and 9b show a fifth embodiment of the ball valve unit of the present invention the fifth embodiment is substantially similar to the third embodiment in the fifth embodiment the drain valve 120 positioned between the flange 110 and ball valve 102 as shown in fig9 a and 9b 0032 fig1 a and 10b show a sixth embodiment of the ball valve unit of the present invention the sixth embodiment is substantially similar to the fifth embodiment and includes a wing shaped handle 300 table 1 shows preferred dimensions for the ball valve units shown in fig5 a 5b 6 a and 6 b the present invention without the addition of any additional components can be used to quickly and easily replace plumbing components and appliances such as pumps the appliance can be changed by simply closing the ball valves and loosening bolts in the flanges on each side of the appliance the appliance will then drop out and a new one can be placed back in thereby minimizing installation problems further because the ball.