• Change Valves Without Draining: Prevents system drain-down by sealing radiator pipes with vacuum-sealing rubber bungs, saving time and avoiding water waste
• Creates a Vacuum Seal to Prevent Air Locks: Maintains system pressure and prevents air entering during valve changes, ensuring efficient radiator performance
• Fits 15mm and 22mm Radiator Pipes: Compatible with standard UK pipe sizes often referred to as 1/2 inch and 3/4 inch, making this kit suitable for most systems
• Durable Rubber Bungs for Reuse: Each bung is made from chemical-resistant rubber for repeated use in plumbing work, resisting pressure and maintaining shape
• Compact Solution for Fast Valve Replacement: Ideal for emergency fixes or planned upgrades, this kit speeds up radiator servicing in homes or commercial jobs
• Works with Common Plumbing Tools: Use alongside radiator bleed kits, drain down hoses or inhibitor treatments to streamline heating maintenance tasks

The LavaTap Radiator Bungs are vacuum-sealing rubber bungs for mess-free radiator servicing and heating repairs. Designed for both professionals and DIYers, they let you change or service radiator valves without emptying the entire heating system. Plug a bung into the exposed inlet or outlet pipe to create a temporary seal that holds back the water and helps maintain pressure while you fit thermostatic radiator valves (TRVs), lockshield valves, or dose central heating inhibitor. Sized for standard 15mm and 22mm UK pipework, they are made from chemical-resistant rubber and are reusable across jobs. Ideal for emergency repairs or planned upgrades, they save time, reduce mess and avoid unnecessary system drain-downs.