Bung the feed and vent instead of draining the full system down.
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Hand-tighten the grippier silicone body—no extra tool needed.
Use the DripStopper for water left at the valve or an awkward cold feed.
WHY THIS SET EARNS ITS SPACE IN THE VAN
The only bung set you need for most open-vented jobs.
Two common UK pipe sizes, grippier silicone and a separate DripStopper for the water most basic pairs leave you to deal with.
15mm bung
For common domestic feed and vent pipework.
22mm bung
The larger size you need is already in the pouch.
DripStopper included
Plug residual water at a radiator or valve, or use it as backup on a difficult cold-feed opening.
Grippier silicone compound
More grip than standard bung material, with a reusable design made for real heating work.
THE COMPLETE SET
ONE POUCH. THREE PRACTICAL PIECES.
Reach for the right size—then deal with the drip.
A standard pair only helps at the tank. This set is built around the whole job: isolate with the 15mm and 22mm grippier silicone bungs, then use the DripStopper for residual water at the valve or as backup on a difficult cold feed.
- Hand-tightening designNo spanner or special tool required.
- Compact storage pouchKeep every piece together in your van or tool bag.
- Reusable by designClean, inspect and carry it ready for the next call-out.
THE DIFFERENCE AT A GLANCE
A complete job kit vs a basic bung pair.
What matters on the job
HeatLab set
Typical pair
Complete job set
15mm + 22mm + DripStopper
Usually 2 bungs
Typical tank coverage
Around 90–95%
Varies by set
Residual water at the valve
DripStopper included
Separate solution
Awkward cold-feed backup
DripStopper included
Usually not included
Grip material
Grippier silicone
Standard bung material
Designed by
UK heating engineer
Varies
SAVE TIME ON SUITABLE OPEN-VENTED SYSTEMS
Avoid the full drain-down. Get the job done faster.
Bung the feed and vent, carry out the repair and use the DripStopper to control the water left at the valve—less draining, less mess and less disruption.
TRV swaps
Lockshield changes
Radiator valve work
Motorised valve maintenance
Selected boiler servicing
Emergency call-outs
QUICK SET-UP
Tie up. Bung. Get the work done.
Tie up the ballcock
Confirm it is a suitable open-vented system and stop the feed.
Fit the right bungs
Insert the 15mm or 22mm pieces into the feed and vent, then hand-tighten.
Control the working end
Plug residual radiator or valve water with the DripStopper, complete the job, then restore the system.
For competent plumbing work on suitable open-vented systems. Identify the system and follow safe working practice before use.
STRAIGHT ANSWERS
Before it goes in your tool bag.
Everything you need to know about what the set includes and where it fits into the job.
What is included in the set?
One 15mm silicone bung, one 22mm silicone bung, one DripStopper and a compact storage pouch. It is a three-piece working set, not just a standard pair of bungs.
What jobs is it designed for?
It is designed for open-vented heating-system work where the feed and vent can be temporarily isolated, including radiator valve and lockshield changes, motorised-valve work and selected boiler servicing tasks.
How do the 15mm and 22mm bungs work?
Tie up the ballcock, select the correct bung for the feed or vent, insert it and tighten it by hand. The expanding silicone body grips the pipe to help hold the vacuum while you carry out the work.
What is the DripStopper for?
It has two useful jobs. Push it into the radiator or valve opening to control the residual water that can remain after the tank is bunged, or use it as a backup on an awkward cold feed where a standard bung cannot achieve a perfect fit.
Will the bungs fit every tank?
The 15mm and 22mm bungs are designed to cover around 90–95% of typical tanks. Cold-feed openings can vary, so the included DripStopper gives you a useful backup for the occasional difficult fit.
Is the set reusable?
Yes. Clean and dry the pieces after use, inspect them before each job and keep them together in the supplied pouch.
Is this for every heating system?
No. These bungs are intended for suitable open-vented systems and temporary isolation during competent plumbing work. Always identify the system correctly and follow safe working practice before starting.
THE ULTIMATE BUNG SET
Save the drain-down. Control the mess.
15mm and 22mm grippier silicone bungs, plus the DripStopper for residual water and difficult cold feeds.
£15.99
Free shipping · VAT included
Get the Ultimate Bung Set
Ultimate Bung Set
3 pieces · £15.99
Get the Bung Set