Fernox Leak Sealer F4 is an internal leak sealer designed for use in central heating systems to seal small, inaccessible leaks and weeps that can cause pressure loss and boiler breakdowns.
Once added to the heating system, F4 circulates through the system and seeks out areas where oxygen is entering through microscopic leaks. It then forms a polymer seal around the affected area, helping to stop the leak without the need to drain down the entire system.
Fernox F4 is effective within 1 to 24 hours and is designed to remain permanently in the system. It is compatible with all common heating system metals and materials, including aluminium, and is formulated not to cause blockages or restrictions in vulnerable components such as pumps, air vents and heat exchangers.
One 500ml bottle treats up to 130 litres of system water, equivalent to up to 16 radiators or 250m² of underfloor heating.
The Ideal 175574 Cleanout Cover Gasket is a reliable and durable replacement part designed for use with Ideal boilers. This high-quality gasket ensures a secure seal for the cleanout cover, preventing leaks and maintaining optimal boiler performance. A must-have for boiler maintenance and repairs.
The Ideal Heating Weather Collar 152258 is a 100mm boiler flue accessory designed to provide a weather seal around compatible flue installations.
Made from durable white plastic, this weather collar is part of the Ideal Heating spares range and is identified by manufacturer model number and supplier part number 152258.
Delivery: Royal Mail Tracked 48 £2.99 (2–3 working days) or Tracked 24 £4.00 (1–2 working days). Free collection from our Wellingborough branch.
The Polypipe RD508B 117mm Internal Stop End is a durable PVC-U fitting designed to securely cap the end of internal soil, waste, and vent pipes. It provides a reliable seal to prevent leaks and blockages, making it ideal for both domestic and commercial plumbing applications. Easy to install and compatible with standard 117mm piping, this stop end ensures long-lasting performance and system integrity. Available at Plumbco for dependable plumbing solutions.
The Polypipe RR107B External Stop is a high-quality gutter end cap designed for use when gutter lengths are less than 300mm. Made from durable materials, it ensures a secure, leak-free closure for domestic and commercial rainwater systems. Easy to install, this external stop provides reliable long-term performance, maintaining the integrity of your gutter installation and preventing water leakage at short gutter runs.
The Polypipe RR108B 112mm Internal Stop End is a durable PVC-U fitting designed to securely terminate the end of internal soil, waste, and vent pipes. It provides a reliable, leak-free seal, making it ideal for both domestic and commercial plumbing systems. Easy to install and compatible with standard 112mm pipework, this stop end ensures long-lasting performance and maintains system integrity. Available at Plumbco for professional plumbing solutions.
The Polypipe RR106B Short Stop End Outlet is a reliable PVCu stop‑end outlet designed for 112 mm half‑round gutter systems, specifically to neatly transition into a 68 mm round downpipe. Ideal for domestic and light commercial rainwater systems, it ensures efficient water flow and a clean finish when terminating your gutter run.
The PP6415 Plastic Pipe Stiffener 15mm is an essential push‑fit insert for use with polybutylene plumbing systems, ensuring secure, stable connections and improved joint integrity in hot and cold water installations. Designed for easy installation in 15mm polybutylene pipe before joining to fittings, this durable pipe support sleeve is WRAS and BBA approved and ideal for professional and DIY plumbing jobs. Add reliability and long‑lasting performance to your PolyPlumb, PolyFit or PolyMax pipework with this direct‑fit pipe stiffener.