The Plasson Blanking Plug 7129 (25mm) is a specialized utility fitting designed to temporarily or permanently seal off an open compression outlet, valve, or manifold port within a 25mm metric MDPE water supply system. It is widely utilized by plumbing, utility, and agricultural professionals during system expansion, pressure testing, or maintenance isolation procedures where a port needs to be securely closed off against water leakage.
 
Manufactured from high-grade virgin polypropylene, this blanking plug provides exceptional impact strength, environmental stress resistance, and complete immunity to rust or corrosion. The assembly features a robust compression nut, captive O-ring seal, and internal components that lock securely into the fitting body or port, ensuring absolute structural retention and preventing displacement under operational pressure.
 
Engineered for rapid, tool-free installation on site, the technician simply threads or inserts the plug into the open port and tightens the component to achieve an instant, reliable seal. Fully WRAS-approved for wholesome potable water and rated for high working pressures up to 16 bar (PN16), this trade-quality blanking plug delivers dependable, leak-free performance across demanding subterranean and surface-mounted infrastructure.