All Rain Bird Valve Boxes were engineered to maintain their horizontal and vertical integrity under load, even with the knock-outs removed. 

Features

• Strength and Stability – Multiple sizes and shapes are designed with corrugated sides and wide flange bases for maximum durability, compression strength, and stability  
• Smart Lid Design – Designed with no holes to keep out pests, beveled edges to minimize damage potential from turf equipment, and for easy hand and shovel access  
• Flexible Installations – Interlocking stacking capabilities, extension models and pipe hole knockouts support deeper and flexible installations    
• Environmentally Friendly – Earth‑friendly, LEED-compliant material made of 100% recycled materials (black boxes and black lids only)