The 07 Brass Ballcock is the standard against how brass ballcocks are judged. It is heavy patterned brass construction, anti siphon design and is completely adjustable. The 07 is dependable and quiet and operates equally well at high or low pressures. This valve is easily serviced while installed. The 07 Brass Ballcock is available in standard lengths of 10”, 11 ½” and 12 ½” sizes.