Heavy-Duty Pool Expansion Plug for Winterizing & Maintenance
The #11 Expansion Plug with Nylon Wing Nut is a high-quality rubber plug designed for sealing 2" to 2-1/4" pool plumbing lines during pressure testing, maintenance, or winterization. It features a durable rubber body and a nylon wing nut for easy, tool-free tightening—ensuring a secure, watertight seal.
Perfect for return lines, cleaner lines, and drain fittings, this plug helps protect your plumbing system during the off-season or when performing service work.
Size: #11 – fits most 2" to 2-1/4" internal pipe diameters
Made of chemical-resistant rubber for durability
Nylon wing nut for quick hand-tightening
Ideal for winterizing pools, pressure testing, and temporary sealing
Easy to install and remove without tools
Provides a reliable, watertight seal
Prevents water intrusion during winter months
Reusable and long-lasting
Suitable for both residential and commercial pool systems
Ensure peace of mind during pool winterization and maintenance with the #11 Expansion Plug with Nylon Wing Nut—a dependable solution for sealing larger plumbing lines.
