LJB 2-Pack Boat Scupper Drain Valve Self-Bailing Ball, One-Way Automatic Drain Valve, Fits 3/4" to 1-1/2" Drain Holes

["Wide Compatibility: Self-bailing ball scupper valve fits 3/4\" to 1-1/2\" scupper openings, with a 2-7/8\" diameter and 1-13/16\" height, and is compatible with most boat models","Efficient Self-Draining: Scupper valves feature an automatic spherical drainage design with a large opening, greatly improving drainage capacity to quickly remove standing water and keep the deck dry","Anti-Backflow Design: Marine drain ball valve features a one-way valve that automatically seals to prevent water, waves, and debris from entering the boat","Durable Transparent Material: Ball scuppers for boats sturdy polycarbonate and polyethylene for long-lasting durability, while the clear housing allows for easy internal inspection","Product Contents: Package includes 2 transparent marine drain valves, offering durable, low‑maintenance performance for all kinds of boating adventures"]