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🔧 Plug into perfection — don’t let leaks steal your peace of mind!
The 4" Steel Drain Test Plug by Primaflow is a robust, alloy steel plug designed to fit standard 4-inch drains. Manufactured in the UK, it offers reliable, reusable sealing for plumbing tests and drainage maintenance, combining durability with easy installation to keep your systems leak-proof and efficient.
| ASIN | B00PFXQWOA |
| Best Sellers Rank | 80,103 in DIY & Tools ( See Top 100 in DIY & Tools ) 26 in Plumbing Testing Equipment |
| Brand Name | Primaflow |
| Colour | Black, Gold |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.4 4.4 out of 5 stars (27) |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Primaflow |
| Manufacturer Part Number | Primaflow |
| Material Type | Alloy Steel |
| Number of Items | 1 |
C**N
Fits a 4 inch drain
Does the job perfectly.
C**0
Excellent.
We had a downstairs toilet built which never warmed up despite having a heater fitted. I used this to plug the 4” duct from extractor fan to outside so I can easily reinstate it if needed, warm as toast now.
R**2
Happy with it
good solid product and good fitting and good sealing with thread. Happy with the product
S**S
Perfect after 3 attempts with other suppliers
Have order 3 other unit from different suppliers. Only this one was 4 inches and a perfect fit.
J**R
Perfect
Slide in nicely and open to create a spot on seal. Worth the money.
TrustPilot
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