400mm High x 400mm Wide Type 21 P+ Double Panel Radiator – K Rad Central Heating Radiator

Upgrade your heating with our 400mm High x 400mm Wide Type 21 P+ Double Panel K Rad Radiator, designed to deliver efficient heat output while maintaining a slim, modern profile.

With its 400mm height and 400mm width, this radiator is perfect for installation under windows, in hallways, kitchens, bedrooms, or any area where space is limited but reliable heating performance is essential.

Featuring a Type 21 P+ configuration (double panel + single convector), it provides an excellent balance of heat efficiency and compact design, making it ideal for modern homes and energy-conscious heating systems.

 Key Features

• Dimensions: 400mm (H) x 400mm (W)
• Type 21 P+ Design: Double panel + single convector for efficient heat output
• Slim & Efficient: Ideal where space is limited
• Modern White Finish: Blends seamlessly with any décor
• Energy Efficient: Compatible with all standard central heating systems
• Easy Installation: Supplied with brackets and fixings

 Fast UK Delivery

We dispatch quickly so you can get your new 400mm x 400mm radiator installed without delay.

 Ideal For

• Under-window installations
• Kitchens, hallways & conservatories
• Replacing older radiators
• Modern heating upgrades
• Rooms requiring efficient yet compact heating

❓ Need Help?

If you’re unsure whether the 400mm x 400mm size is right for your space, get in touch — we’re happy to help.