shows the control valve that the internal tube adaptor attaches to the control valve connects to the exposed threads 1010 of the snap fitting internal tube adaptor 1000 using a hexagonal coupler 1210 with matching internal threads the hexagonal coupler 1210 is friction fitted or glued into the female end 1215 of the control valve 1200 a valve stem 1220 passes through the body of the control valve 1200 and turns to selectively allow fluid flow through the valve 1200 the male end 1230 of the control valve 1200 pressure fits into a corresponding female end of a u00bc u2033 to u215b u2033 socket adaptor fig1 shows the u00bc u2033 to u215b u2033 socket adaptor the female first end 1310 of the u00bc u2033 to u215b u2033 socket adaptor 1300 pressure fits over the male end 1230 of the control valve 1200 the second end 1315 of the u00bc u2033 to u215b u2033 socket adaptor 1300 is internally threaded to couple with the nozzle assembly fig1 is an exploded isometric view of the nozzle assembly of a preferred embodiment of the present invention in this view a threaded end element 1446 threadedly connects to the u00bc u2033 to u215b u2033 socket adaptor 1300 a filter element 1458 is inserted into end element 1446 located between a receptacle 1456 with the end element 1446 and the receptacle 1456 threadedly coupled together a nozzle 1560 is threadedly connected to the 1456 preferably nozzle 1460 has a flow rating of at least 0 75 gallons per hour an o ring seal 1462 seals the connection between nozzle 1460 and receptacle 1456 fig1 is.