Top 7 Radiator Extension Tail UK – DIY & Tools

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1. Primaflow

Pack of 2, 70mm Chrome Radiator Tail Extension

Primaflow - Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations. This listing is for a pack of 2 radiator tail extensions. Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 70mm telescopic extension.

This replacement also has a 1/2 inch bsp thread, is telescopic and up to 70mm long, allowing the end of the extension to reach up to 70mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body.

Can be used on fixed or thermostatic valves, or both ends if required. Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter. Please note we also sell 50mm and 60mm long versions of the extension.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.16 kg (0.35 Pounds)
Part NumberPrimaflow

2. Primaflow

60mm Chrome Radiator Tail Extension, Pack of 2

Primaflow - Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations. This listing is for a pack of 2 radiator tail extensions. This replacement also has a 1/2 inch bsp thread, is telescopic and up to 60mm long, allowing the end of the extension to reach up to 60mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body.

Can be used on fixed or thermostatic valves, or both ends if required. Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 60mm telescopic extension.

Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter. Please note we also sell 50mm and 70mm long versions of the extension.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.14 kg (0.31 Pounds)
Part NumberPrimaflow

3. Primaflow

50mm Chrome Radiator Tail Extension, Bag of 2

Primaflow - Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations. Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 50mm telescopic extension.

Please note we also sell 60mm and 70mm long versions of the extension. This replacement also has a 1/2 inch bsp thread, is telescopic and up to 50mm long, allowing the end of the extension to reach up to 50mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body.

Can be used on fixed or thermostatic valves, or both ends if required. This listing is for a pack of 2 radiator tail extensions. Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.15 kg (0.33 Pounds)

4. Primaflow

60mm Chrome Radiator Tail Extension

Primaflow - This listing is for a pack of 1 radiator tail extension. This replacement also has a 1/2 inch bsp thread, is telescopic and up to 60mm long, allowing the end of the extension to reach up to 60mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body.

Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 60mm telescopic extension. Please note we also sell 50mm and 70mm long versions of the extension. Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations.

Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter. Can be used on fixed or thermostatic valves, or both ends if required.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.08 kg (0.18 Pounds)
Part Number10099250

5. Primaflow

Pack of 5, 70mm Chrome Radiator Tail Extension

Primaflow - Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter.

This listing is for a pack of 5 radiator tail extensions. Please note we also sell 50mm and 60mm long versions of the extension. Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 70mm telescopic extension. Can be used on fixed or thermostatic valves, or both ends if required.

Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations. This replacement also has a 1/2 inch bsp thread, is telescopic and up to 70mm long, allowing the end of the extension to reach up to 70mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.4 kg (0.88 Pounds)

6. Primaflow

50mm Chrome Radiator Tail Extension, Bag of 5

Primaflow - Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations. This listing is for a pack of 5 radiator tail extensions. Can be used on fixed or thermostatic valves, or both ends if required.

Please note we also sell 60mm and 70mm long versions of the extension. Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter. Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 50mm telescopic extension.

This replacement also has a 1/2 inch bsp thread, is telescopic and up to 50mm long, allowing the end of the extension to reach up to 50mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.5 kg (1.1 Pounds)

7. Primaflow

70mm Chrome Radiator Tail Extension

Primaflow - Replaces existing 1/2 inch bsp x 25mm long threaded tail that is usually supplied with radiator valves to fit the valve to the radiator body, with a 70mm telescopic extension. Most plumbing products thread sizes are stated as bsp imperial thread measurements which means that the actual diameter of the thread that screws into the radiator body is approximately 1/4 inch larger than that stated in BSP terms, so measures approximately 3/4 inch in diamter.

This listing is for a pack of 1 radiator tail extension. Please note we also sell 50mm and 60mm long versions of the extension. Can be used on fixed or thermostatic valves, or both ends if required.

This replacement also has a 1/2 inch bsp thread, is telescopic and up to 70mm long, allowing the end of the extension to reach up to 70mm from the side of the radiator where the thread ends approximately 12mm should be allowed for the extension end to fix into the compression fitting of the valve body. Ideal for changing imperial radiators to metric radiators without the need for extensive pipework alterations.
BrandPrimaflow
ManufacturerPrimaflow
Weight0.07 kg (0.15 Pounds)
Part Number10099248