The Zoeller Riser Assembly for septic tanks measures 30 inches in diameter and 3 feet in length, designed for efficient access and maintenance of septic systems. Constructed from durable materials, this riser is engineered to withstand harsh environmental conditions. It is compatible with various septic tank models, ensuring a secure fit and reliable performance. The assembly facilitates easy access for inspections and repairs, promoting the longevity of your septic system. Ideal for residential and commercial applications, this riser meets industry standards for quality and safety.