Sold as each. Service access for plumbing, electrical, security systems, telephone, TV, computers, etc. Springloaded pop-in/pop-out. Installs in walls and ceiling up to 3/4" thick. Can be painted or wallpapered. Plastic. Shrinkwrapped. Nominal Opening: 14" x 14". Overall: 15-1/4" x 15-1/4". Manufacturer"s number: AP-1414. Country of origin: United States. Distributed by Fluidmaster, Inc.