The Anderson Manufacturing Standard Closed Expansion Plug is designed to create a secure seal inside pool and spa plumbing lines during winterization, pressure testing, and routine plumbing maintenance. Its compact expansion design makes it ideal for sealing pipes, skimmers, return lines, and other plumbing openings where a standard expansion plug provides the proper fit.

Constructed with a solid rubber expansion body, durable brass hardware, and a heavy duty corrosion-resistant plastic wingnut, this plug is built for dependable performance and repeated use. The expansion mechanism creates a reliable, leak-resistant seal while the lightweight wingnut makes installation and removal quick and easy.

Designed for both residential and commercial pool and spa maintenance, Anderson Standard Closed Expansion Plugs provide long-lasting durability and consistent sealing performance season after season.

• Designed for 1-1/2" pool and spa plumbing lines
• Ideal for winterizing pools and spas
• Suitable for pressure testing and isolating plumbing lines
• Commonly used in skimmers, return lines, suction lines, and other plumbing applications
• Solid rubber expansion body provides a dependable, leak resistant seal
• Durable brass hardware delivers long lasting strength
• Heavy duty plastic wingnut is lightweight, corrosion resistant, and easy to tighten
• Compact design is ideal for standard plumbing applications
• Built for repeated residential and commercial use