The 40mm Expansion Plug is a practical and dependable solution for sealing pool plumbing lines during maintenance, pressure testing, or winterising. Designed to create a secure, watertight seal inside 40mm pipework, it helps prevent leaks, water loss, and debris from entering your system while work is carried out.
Built with durable materials and a corrosion-resistant tightening mechanism, this reusable plug delivers long-lasting reliability and a snug internal fit—making it an essential item for pool technicians, DIY owners, and routine system upkeep.
Key Features:
- Creates a tight, watertight seal in 40mm pool plumbing
- Ideal for maintenance, pressure testing, repairs, or winterising
- Durable, corrosion-resistant construction
- Reusable design for ongoing system care
- Easy installation with adjustable compression
Top 3 Reasons we think you’ll love this product:
- Prevents water loss and pipe contamination during maintenance
- Strong, reliable seal ensures testing accuracy and system protection
- Simple, cost-effective tool that every pool owner should have
Specifications:
- Product: Expansion Plug 40mm
- Part Type: Pipe sealing/blanking plug
- Size: Fits standard 40mm internal diameter plumbing
- Application: Pool, spa, and general water systems
Reliable, versatile, and easy to use, the 40mm Expansion Plug keeps your plumbing protected—so maintenance is cleaner, safer, and more efficient.
