Product overview 2piece set of 1.5 inch rubber expansion pipe plugs designed for winterizing and temporary sealing of swimming pool and spa pipework. Each plug uses an expandable rubber design to form a secure seal inside 1.5 inch pipe openings. Key benefits Protects pipework during winter and maintenance: provides a reliable internal seal to block water and debris while equipment is shut down. Simple, fast installation: insert the plug into the pipe opening and expand to seat the plug for an effective seal without specialized tools. Secure fit for 1.5 inch openings: expansion design adapts to small variations in pipe ID for a snug fit. Durable rubber construction: flexible material conforms to pipe walls to reduce leaks and maintain a seal under typical seasonal conditions. Two plugs included: enough to seal multiple lines or to keep a spare on hand for maintenance tasks. Function and compatibility Function: expansion winterizing plug for sealing and blocking water flow in pipework. Size: fits 1.5 inch pipe openings. Material: rubber expansion plug. Quantity: 2 pieces per pack. Intended for use with swimming pool and spa pipework and related plumbing lines. Practical use scenarios Winterization: seal and suction lines before draining or closing a pool to limit water left in pipework and reduce freeze risk. Seasonal equipment service: isolate lines when removing or servicing pumps, heaters, or filters to prevent water backflow and simplify repairs. Temporary leak testing and maintenance: block selected pipes during pressure checks or when locating leaks to control flow without permanent fittings. What you will receive Two 1.5 inch rubber expansion pipe plugs sized and shaped for use as winter fittings for pool and spa plumbing. Easy to store and install for seasonal use and routine maintenance.