About This

• 【Size Selection Guide】This product is the 4-inch outlet version. If your 3-inch single-wall corrugated pipe connects inside a 4-inch fitting,please choose the 4-inch version. If your drainage system is entirely 3-inch pipe with no 4-inch fitting involved,please select the 3-inch version from the variation options to ensure proper fit.
• 【Direct Pipe Compatibility】Directly fits 4" PVC D2729 (Sewer & Drain, S&D), 4" Schedule 40, 4" SDR35, and 3"–4" corrugated pipe without additional adapters. Stepped shoulders and locking features help ensure proper seating and alignment across common drainage pipe types.Installation on 3" triple-wall pipe is not recommended, as fitment cannot be guaranteed.
• 【Dual-Rod Pop Up Design】Features a dual-rod guided pop-up mechanism that controls vertical movement and reduces tilting during operation. Spring-free construction avoids corrosion and binding commonly found in traditional spring-loaded designs.Installation on 3" triple-wall pipe is not recommended, as fitment cannot be guaranteed.
• 【Integrated Elbow Outlet】Integrated elbow design provides directional water discharge, helping guide flow away from foundations, retaining walls, and low-lying areas. Intended for use at the downstream outlet of underground drainage systems.Installation on 3" triple-wall pipe is not recommended, as fitment cannot be guaranteed.
• 【Low-Profile & Lawn Friendly Top 】Returns flush or near-flush to help reduce mower contact and keep yard areas usable after storms. The textured surface resists scuffs for long-term outdoor use. Installation on 3" triple-wall pipe is not recommended, as fitment cannot be guaranteed.
• 【Drainage System Application】Designed for use with yard drainage systems, including downspouts, channel drains, catch basins, and underground drain lines in residential outdoor environments. Installation on 3" triple-wall pipe is not recommended, as fitment cannot be guaranteed.