Pack of 7 rectangular pipe plugs in black plastic Key details - Size: 18 x 30 mm outer diameter - Note: the 18 x 30 mm dimension refers to the pipe outer diameter, not the hole - All other dimensions are shown in the photos/table - Material: polyethylene plastic - Color: black Why you need it - Provides a quick, reliable seal for small pipe openings - Helps protect against dust, debris and moisture during maintenance or storage - Lightweight, durable and easy to handle Compatibility and performance - Designed for pipes with an outer diameter around 18 x 30 mm - Made from polyethylene for sturdy, long lasting use - Pack includes 7 plugs for convenient replacement and ongoing projects Practical use scenarios - Sealing unused or serviced pipes during renovations or plumbing work - Temporary blockage of small drainage or ventilation runs during cleaning or testing - Protecting open pipe ends during transport or storage of related components