

🔩 Seal the deal with confidence — don’t let leaks hold you back!
The Dsnaduo Automotive Neoprene Expansion Plug is a high-strength, expandable rubber stopper reinforced with steel, designed to fit pipe diameters from 1 inch to 1-1/8 inch (25-28mm). Sold in a convenient 4-pack, it offers easy installation and reliable leak-proof sealing, making it a top choice for automotive and plumbing professionals seeking durable, multipurpose expansion plugs.
| ASIN | B09P12JQRD |
| Best Sellers Rank | #172,333 in Automotive ( See Top 100 in Automotive ) #10 in Automotive Expansion Plugs |
| Brand | Dsnaduo |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (535) |
| Date First Available | 9 January 2022 |
| Item Weight | 187 g |
| Material | Neoprene, Rubber |
| Model Number | D0311 |
| Package Dimensions | 13.8 x 8.1 x 3.1 cm; 187 g |
R**N
Worked great on my project. No leakage
B**N
Used 2 for a totally different reason but worked really well
G**Y
Well constructed. I used them for pressure testing.
B**B
Nothing, had blown 2 frost plugs over the winter in a Mercruiser inboard. Replaced them with these and it worked perfectly...
B**R
Great price. It sealed my freeze plug and my tractor is back in service
Trustpilot
1 day ago
2 weeks ago