Horobin 3″ (75mm) Steel Drain Test Plug | 73mm – 85mm Expansion Range
£9.41
Horobin 75mm Expanding Steel Drain Bung – 3″ Pipe Test Plug for Air and Water Testing
Horobin 3″ (75mm) Steel Drain Test Plug | 73mm – 85mm Expansion Range
- Genuine Horobin 75mm (3″) steel test bung
- Expanding range fits internal pipe diameters from 73mm to 85mm
- Professional solution for air and water pressure testing
- Corrosion-resistant steel plates with a thick rubber seal
- Large butterfly screw for high-torque mechanical tightening
- Comes with standard 1/2″ BSP thread capped with washer
- Connection thread if needed is 1/2″ BSP (measures 21mm)
Details
This Horobin 3″ steel test plug is a heavy-duty tool for professional drainage work. Specifically, it is built to seal and test 75mm internal diameter pipes. The plug expands to fit a range from 73mm to 85mm. It uses a robust steel plate construction that withstands high pressure. As you tighten the butterfly screw, the rubber ring compresses to form an airtight seal. Consequently, it is ideal for locating leaks or blocking pipes during maintenance. In short, this 3-inch bung provides a reliable, high-performance seal for industrial or domestic use.
Cheap, non-branded test bungs often warp or lose their seal under high air pressure. Furthermore, finding a plug that fits both modern plastic and older cast iron 3-inch pipes is difficult. Specifically, a leaking test plug leads to false readings and wasted hours on site. However, the Horobin 75mm Steel Test Plug solves these mechanical failures. It provides an exceptionally tight grip that will not slip. Because it expands up to 85mm, it accommodates variations in pipe wall thickness effortlessly. You can secure the joint by hand without needing specialist tools. Therefore, you can conduct your air and water tests with absolute precision.
Brand:
- Horobin
MPN:
Related
Collection from our store – Once purchased you will receive an email or call to confirm if your order is ready to be collected straight away or estimated date if we do not have some of the items in stock.
Delivery
Our warehouse ships orders Monday to Friday with a 14:00 cut off time for same day dispatch, any orders placed after 14:00 will be shipped the next working day. If for reason we do not have the goods in stock we will call.
Delivery to United Kingdom (Mainland)
Royal Mail 48 Tracked – Delivery 2 – 3 working days from dispatch
Royal Mail 24 Tracked – Delivery 1 working day from dispatch
DPD Next Day – Delivery guaranteed next working day with a 1hour time slot.
Collection from our store – Once purchased you will receive an email or call to confirm if your order is ready to be collected straight away or estimated date if we do not have some of the items in stock.
Delivery
Our warehouse ships orders Monday to Friday with a 14:00 cut off time for same day dispatch, any orders placed after 14:00 will be shipped the next working day. If for reason we do not have the goods in stock we will call.
Delivery to United Kingdom (Mainland)
Royal Mail 48 Tracked – Delivery 2 – 3 working days from dispatch
Royal Mail 24 Tracked – Delivery 1 working day from dispatch
DPD Next Day – Delivery guaranteed next working day with a 1hour time slot.
Related products
Horobin 74091 Nylon Drain Testing Plug 6 Inch 150mm | Lightweight Butterfly Screw Expansion Bung | 160mm
In stock
Genuine Horobin 74091 6" (150mm) nylon expansion bung. This lightweight, corrosion-proof plug features a butterfly screw for easy tightening during air or water pressure tests. Pro Tip: Being made of nylon, this plug is ideal for use in environments where metal components might rust or seize. It provides a secure, airtight seal for standard 150mm and 160mm drainage pipes.









Reviews
There are no reviews yet.