16 x 22 x 6 Jumbo Black Valve Box Extension without Lid

All black bodies and black lids are made from 100 percent recycled materials, making them earth-friendly and LEED compliant. | The knockouts can be slid back into place to keep backfill dirt from entering the valve box. | For larger and deeper applications, valve box extension models and bottom-to-bottom stacking and interlocking capabilities provide installation flexibility. | Pipe-hole knockouts designed to fit with most pipe configurations are built into the sides of the valve box for easy pipe placement with little need for time-consuming, tedious cutting. | Smart lid design with no holes to minimize pest access. | Wide flange bases and corrugated sides protect valves by offering maximum durability, compression strength and stability under heavy loads. | Strength and stability with unique features that save contractors time and money. | Available in multiple sizes and shapes to provide the right fit for any application. | Lids also have beveled edges that minimize the potential for damage from lawn equipment while allowing for easier hand and shovel access