k-rad-kompact-type-21-double-panel-radiator-500-x-700mm

K Rad Kompact Type 21 500 x 700mm Radiator - Double Panel Single Convector

13 reviews

£78.00 (Inc. VAT)

✓ In Stock

FREE DELIVERY

Description

Key Features:

  • Type 21 radiator — combines two panels with a single convector
  • Strong heat output — well suited to small and medium-sized rooms
  • Slimmer than a Type 22 — provides effective heating with a reduced projection
  • Pre-fitted top grille and side panels — creates a smart, finished appearance
  • Standard G½in connections — compatible with common UK radiator valves
  • BS EN 442 compliant — tested to the recognised radiator performance standard
  • Wall-mounting kit included — supplied with brackets and essential fittings
  • 10-year guarantee — covers manufacturing defects for added reassurance

What’s Included:

  • 1 x Prorad Type 21 double-panel, single-convector radiator
  • Wall-mounting brackets
  • Air vent
  • Blanking plug
  • Screws and screw caps

The Prorad Type 21 Double Panel Convector Radiator combines two steel panels with a single convector to deliver a strong heat output without the greater projection of a Type 22 model. It is a practical choice for small and medium-sized rooms where dependable warmth and efficient use of wall space are important.

K Rad Kompact Type 21 500 x 700mm Radiator - Double Panel Single Convector

Double-panel heat output

Two radiator panels provide a larger heating surface than a standard single-panel model. A single convector sits between them to increase warm-air circulation, helping the room reach a comfortable temperature efficiently.

Pre-fitted top grille and side panels

Factory-fitted side panels and a top grille conceal the radiator’s internal components and create a neat, finished appearance. Their vented design allows warm air to circulate freely.

Wall-mounting brackets included

Heavy-duty L-shaped brackets secure directly to a suitable wall, while the holders on the back of the radiator allow it to hang securely in position. The supplied air vent, blanking plug, screws and screw caps provide the principal fittings required for installation.

Standard UK connections

Standard G½in threaded connections make the radiator compatible with a wide choice of commonly available UK radiator valves. Valves are not included unless stated separately.

BS EN 442 compliant

This radiator conforms to BS EN 442, the recognised standard covering the performance and testing of radiators used with water-based central-heating systems.

10-year warranty

The radiator comes with a 10-year warranty against manufacturing defects, subject to the applicable terms and conditions.

Bring dependable warmth to your room with a Prorad Type 21 radiator from Plumbworld.

Specifications

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Technical

K Rad Kompact Type 21 500 x 700mm Radiator - Double Panel Single Convector – Technical Specifications
Panel Configuration Double
Warranty 10 Years
Panel Profile Flat
Fuel Type Central Heating
Style Modern
Colour White
Installation Type Hot Water
Height 500 mm
Width 700 mm
Material Mild Steel
Watts Output (Delta 30) 444
Watts Output (Delta 50) 863
BTU Output (Delta 30) 1515
BTU Output (Delta 50) 2943
Type Panel Radiators
Orientation Horizontal
RAL Colour Code 9016
Pipe Centres 700
Range Kompact
Panel Type Double Panel Single Convector
Warranty 10 Years

Documents (1)

Technical Drawings

k-rad-kompact-type-21-double-panel-radiator-500-x-700mm
k-rad-kompact-type-21-double-panel-radiator-500-x-700mm

K Rad Kompact Type 21 500 x 700mm Radiator - Double Panel Single Convector

Product Code: P507K

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£78.00 (Inc. VAT)

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Lowest Price Guaranteed
Plumbworld £78.00
B&Q £89.94
Tradeplumbing.co.uk £90.37
HeatandPlumb.com £98.95
Victorian Plumbing £99.94
showerstoyou.co.uk £145.05

Prices last checked on 10/11/2026
All prices are including VAT and excluding delivery charges


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13 Product Reviews

Add your own review
  • 5/ 5
    Tom Murphy rated another option 5/5
    ★★★★★

    Brilliant service from Plumbworld and quality product as usual.

  • 5/ 5
    Alan rated another option 5/5
    ★★★★★

    Replaced a previous leaking radiator of a similar size so a straight forward job. no issues.

  • 5/ 5
    Glen jarvis rated another option 5/5
    ★★★★★

    Great value and superb service all round. Will use again.

  • 5/ 5
    Paul Heal rated another option 5/5
    ★★★★★

    I needed to replace all my radiators as they were over 35 years old. These look better and seem to heat up quicker. Great buy.

  • 5/ 5
    Linda rated another option 5/5
    ★★★★★

    Placed my order and the item was delivered earlier than stated. Was delighted with the service

  • 5/ 5
    L Shields rated another option 5/5
    ★★★★★

    Plumbworld wass quick to communicate and send order. Product was great quality and very good value.

  • 5/ 5
    Bill Mann rated another option 5/5
    ★★★★★

    Excellent product, well packed and delivered on time.

  • 5/ 5
    D.Germaney rated another option 5/5
    ★★★★★

    A Really good radiator,from a really good supplier.

  • 5/ 5
    Mark Sheppard rated another option 5/5
    ★★★★★

    Bought this Rad to replace an old single panel Rad. Finish’s off a newly decorated hallway nicely and giving off a lot of heat - which is probably overkill seeing as it is the same length as the old one. Only problem I faced was not ensuring the tails were super tight before fitting to the wall - one end started to loosen as I tightened the pipework to it (tightening in the opposite direction) - user error!

  • 5/ 5
    Allan Biggs rated another option 5/5
    ★★★★★

    I went for this brand as it had a higher heat output than the Screwfix/Toolstation/B&Q equivalent. It is well made with a good finish. All the normal fittings included. I would buy again.

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