Dura Plastics - 12" Standard Valve Box Extension

Dura's Rectangular Extension Valve Box provides professional-grade protection for irrigation control valves in residential and commercial landscapes. Manufactured in the USA with high-quality materials, this valve box keeps components safe from the elements while maintaining easy access for maintenance.

Key Features:

• Made from high-density polyethylene for superior strength and durability
• Includes green lid for easy identification and UV protection
• Designed for use in non-vehicular, light-duty pedestrian traffic areas
• Manufactured in the USA in Dura's Tennessee facility
• Resistant to chemicals, water absorption, and harsh environmental conditions

Technical Specifications:

• Dimensions: 12" x 17"
• Depth: 6"
• Material: High-density polyethylene (HDPE)
• Static Vertical Load Rating: SCTE - Light Duty, Pedestrian
• Tensile Strength: 2,700 - 4,400 PSI
• Flexural Modulus: 140,000 - 240,000 PSI
• Notched Izod Impact Strength: 0.5 - 3.0
• Deflection Temperature @ 66 PSI: 150 - 200°F
• Density: 0.950 - 0.965
• Electrical Dielectric Strength: 400 - 600 V/mil
• Water Absorption: Less than 1% weight change
• Chemical Resistance: Very Resistant

Installation & Application:

• Recommended Uses: Residential, commercial, parks, golf courses, sports fields
• Installation Method: In-ground installation over irrigation control valves
• Soil & Climate Suitability: Suitable for all soil types and climates

Compatibility & Optional Accessories:

• Compatible with standard 12" x 17" valve boxes and extensions
• Optional lids available for reclaimed water or electric markings