The SPI QuickBung range is a set of professional rubber bungs designed to stop drips, prevent mess, and protect flooring during radiator and plumbing maintenance. Whether you’re removing a radiator, changing a valve, draining pipework, or working in roof spaces on tanks and cylinders, QuickBungs create a fast, reliable seal in non-pressurised systems — saving time on cleanup and keeping jobs tidy.

Made from durable, high-quality rubber, each bung is stepped/tapered for a snug fit across common apertures. Their bright green colour makes them easy to spot and remove after the job. Simply push and twist into place for a secure seal, then remove cleanly once maintenance is complete.

Important: QuickBungs are for non-pressurised systems only and are not intended as a permanent plumbing or heating solution.

Choose your variant:

• SPI QuickBung Radiator Bung – Green (SEL9234)
  Universal stepped/tapered bung for standard radiator valve apertures. Fits pipe diameters 5mm to 22mm. Temperature range -25°C to +90°C. Compact, lightweight and reusable.

• SPI QuickBung Large – Green (Apertures 14mm–42mm)
  Longer, larger bung for tougher drip-control tasks. Ideal for cylinder/tank removal, roof-space maintenance and waste pipe sealing. Designed for apertures 14mm to 42mm and iron pipes up to 1 1/2".

• SPI UniBung Pair – 15mm & 22mm End Cap Bungs
  Versatile dual-size kit with two end cap bungs: 1x 15mm and 1x 22mm. Perfect for isolating sections of pipework or sealing radiators/tanks without draining the full system.

Key Features:

• Stops drips and prevents water damage during maintenance

• High-quality rubber construction for durability and flexibility

• Stepped/tapered design for secure sealing across multiple sizes

• Bright green for easy visibility on site

• Reusable, compact, and easy to clean

• For non-pressurised systems only