12 Inch Inflatable Pipe Plug Sewer Test Plug with 39.37 in Extension

In this review the 12 inch inflatable pipe plug from Glooglitter is examined for plumbers and maintenance crews who need a reliable, reusable sealing solution for sewage pipeline inspection and temporary water blocking. The bottom line: this kit stands out for its thickened natural rubber construction and large extension hose, making it practical for testing and maintenance where a secure, low-pressure seal is required. Its simple manual inflation and thoughtful storage advice mean it is aimed at hands-on technicians rather than automated test shops.

Key Features

• Thickened rubber construction: The plug is made from 4.5mm natural rubber so it holds shape and demonstrates strong memory for repeated use.
• Correct fit for 12 in pipes: The plug measures about 11x16 in (WxH) and is sized to work reliably in 12 in pipe openings when installed properly.
• Long extension hose: The included 39.37 in extension hose gives extra reach and flexibility when inflating the test balloon in hard to access locations.
• Complete accessory kit: The package includes valves, a buckle and a storage bag so technicians have the parts needed for routine inspections and quick field repairs.
• Low-pressure safety limit: The plug is designed for manual pump inflation with a maximum working pressure not to exceed 2.18 PSI to reduce risk during tests.
• Pull rings and sealing design: Double pull ring and skirt belt reduce air leakage and make removal easier after testing.

Who It's For

This product is ideal for municipal and commercial plumbers, maintenance teams, and contractors performing sewage pipeline inspection, floor drain isolation, or temporary water blocking experiments. Its durable rubber and accessory set suit repeated field use where portability and a manual inflation method are preferred.

Those who should look elsewhere include teams needing high-pressure or automated inflation systems, or users requiring exact-certified laboratory pressure testing above the 2.18 PSI limit. Also, confirm pipe interior cleanliness and absence of burrs before purchasing to ensure an effective seal.

Pros & Cons

Pros

• Robust 4.5mm thickened natural rubber gives good expandability and long-term memory.
• Extension hose of about 39.37 in improves access to recessed test points.
• Complete kit with valves and buckle reduces the need to source extras for field use.
• Double pull ring and pure copper valve design simplify removal and sealing.

Cons

• Maximum working pressure is limited to 2.18 PSI, so it is not suitable for high-pressure testing.
• Requires manual pump inflation and a clean pipe interior for reliable sealing, which can add prep time on older or damaged pipes.

Specifications

Brand	Glooglitter
Material	Thickened natural rubber (4.5mm)
Plug size	About 11 x 16 in (WxH), fits 12 in pipe
Extension hose	About 39.37 in long
Included items	1 sewer test plug, 1 extension hose, 1 bag of valves and buckle
Max working pressure	Do not exceed 2.18 PSI

Our Verdict

The Glooglitter 12 in inflatable pipe plug is a practical, value-minded choice for plumbers and maintenance crews who need a reusable, low-pressure sealing tool for sewage inspection and blockage tests. Its thickened rubber and long extension hose make it especially useful in confined or hard to reach openings, while the included accessories and clear storage guidance help prolong service life.

Frequently Asked Questions

Can this plug be used on other pipe diameters?
It is sized for 12 in pipes; smaller or larger pipes will not seal properly unless the plug dimensions match the pipe ID.

What inflation method should be used?
Only a manual pump should be used to inflate the test balloon, and never exceed the specified 2.18 PSI working pressure.

How should the plug be stored?
Store in a cool, dry place away from strong acids, apply talcum powder to the surface and seal in a plastic bag to extend lifespan.