NDS 6-in W x 8.38-in H Round Irrigation Valve Box in the Irrigation Valve Boxes department at Lowes.com
Amazon.com : Bandelt Sprinkler Valve Box Cover Lid for Automatic Irrigation Water System Lawn, Yard, Outside ID 5.5" OD 6"-2 Pack : Patio, Lawn & Garden
PVBJMB - 12 in. PVB Jumbo Valve Box - Black Body & Drop-in Green Lid
Carson Round Valve Box including Lid-6" - Sierra Irrigation
10-inch Round Valve Box with Green Lid - Landscape Products Inc.