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
VBJMBB - Jumbo Valve Box - Body Only
NDS 6-in W x 8.38-in H Round Irrigation Valve Box in the Irrigation Valve Boxes department at Lowes.com
Valve Boxes - HydroRain
NDS 10 in. Round Valve Box and Cover, Black Box, Green ICV Cover 111BC - The Home Depot