Technical Products #9 Winter Plug w/Blowout Valve SP209V Seal your pool plumbing with confidence using the #9 Winter Plug with Blowout Valve. Built for dependable performance season after season, this plug fits snugly in pool lines to protect against freeze damage and moisture intrusion during the off-season. Key Features and Benefits: Creates a tight, secure seal in return lines, skimmers, drains, and jets Built-in blowout valve allows easy line clearing and pressure testing using compressed air Expands firmly inside pipes to block moisture and prevent freezing issues Constructed with durable rubber and marine-grade stainless steel for lasting strength Resistant to corrosion and chemical wear for extended use Reusable year after year for convenient and cost-effective protection Simple, tool-free tightening with large wing nut design Specifications: Model: SP209V Plug Size: #9 Fitting Compatibility: Designed for standard pool pipe openings (see size guide) Material: Heavy-duty rubber with marine-grade stainless steel hardware Valve Type: Blowout valve for air pressure insertion Application: Pool winterization, line sealing, and pressure testing
