Technical Products | #9.5 | 1/2" Pipe & 1-1/4" Fitting Winter Plug with Nylon Wing Nut

This #9.5 winter plug is designed to seal compatible 1/2-inch pipe and 1-1/4-inch fittings during pool winterization, maintenance, pressure testing, and repairs. Featuring an expandable rubber body and a durable nylon wing nut, it creates a secure, watertight seal to help protect plumbing lines from water intrusion and freeze damage.

Ideal for seasonal pool closing and routine service work, this reusable expansion plug provides a reliable sealing solution for residential and commercial pool systems.

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Key Features

• Fits compatible 1/2" pipe and 1-1/4" fittings

• Expandable rubber winter plug

• Durable nylon wing nut for tool-free tightening

• Creates a secure, watertight seal

• Reusable design for seasonal maintenance

• Ideal for winterization, pressure testing, and repairs

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Product Overview

The Technical Products #9.5 Winter Plug is engineered to temporarily seal compatible pool and spa plumbing openings during winterization and equipment servicing. Tightening the nylon wing nut compresses the expandable rubber body, creating a dependable seal that helps prevent water from entering or escaping the plumbing system.

This expansion plug is commonly used by pool service professionals for winter pool closings, leak testing, plumbing isolation, and equipment maintenance. Verify the pipe or fitting size before installation to ensure the proper fit and reliable sealing performance.