






🔧 Seal it tight, test it right — the pro’s choice for flawless plumbing!
The Steel Drain Test Pipe Bung/Plug 4" (100mm) by AB Tools is a corrosion-resistant, zinc-plated alloy steel plug designed for secure, temporary sealing of pipes during repair and low-pressure air or water testing. Featuring a centre locking mechanism with brass wing nuts, it ensures a reliable fit across a broad size range (1.5" to 18"), making it an essential tool for professional plumbers and maintenance managers aiming for precision and durability.
| Manufacturer | AB Tools | 
| Part Number | SIL427A | 
| Item Weight | 15.1 ounces | 
| Product Dimensions | 3.94 x 3.94 x 3.15 inches | 
| Item model number | 4" (100mm) | 
| Size | 10 | 
| Color | Black | 
| Material | Alloy Steel | 
| Number Of Pieces | 1 | 
| Included Components | SIL427A | 
| Batteries Included? | No | 
| Batteries Required? | No | 
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