Description
Technical Products SP-205 Winter Expansion Plug 5 – For 1″ Tube
The Technical Products SP-205 is a 5 rubber winter expansion plug designed to seal 1″ inside-diameter (ID) lines/tubes during pool winterization. The plug expands as you tighten the wing nut, creating a secure, watertight seal to help prevent water from re-entering the line and causing freeze damage.
Key Features
- Fits: 1″ ID tube/line (common winterizing size)
- Expansion style seal: Tightening compresses the rubber to expand and grip the inside of the pipe
- Durable rubber body built for seasonal freeze protection
- Wing nut tightening for quick install and removal (no tools typically required)
- Helps protect plumbing from freeze-related cracking by keeping water out after blowout
Specifications
- Manufacturer: Technical Products
- Part Number: SP-205
- Plug Size: 5
- Application: Winterizing / line sealing
- Line Size: 1″ ID tube/pipe (verify your line ID before ordering)
Common Uses
- Sealing small pool plumbing lines after blowing out water
- Blocking auxiliary ports, cleaner lines, or accessory lines that match a 1″ internal diameter
- General-purpose seasonal sealing for compatible 1″ tubes/ports
Installation Notes
- Insert the plug into a clean, dry pipe opening.
- Tighten the wing nut until the rubber expands and seals firmly.
- Do not overtighten—tighten only until snug and leak-free.
- Remove in spring by loosening the wing nut and pulling the plug straight out.
Related Products
- Technical Products Winter Plugs (Other Sizes)
- Pool Winterizing Plugs
- Skimmer Protection Gizmos
- Pool Winterizing Kits
- Air Blowout Adapters & Fittings
- Thread Seal Tape
Maintenance Tips
- Verify line size by measuring the inside diameter of the pipe—winter plug sizes are based on the opening they seal.
- After installation, check for seepage; a properly expanded plug should seal without needing excessive force.
- Store plugs clean and dry in the off-season to extend rubber life.
- If the rubber is cracked, stiff, or won’t expand evenly, replace the plug before winterizing.
