For Sale : Hy - Flo Pumps by Medcalf Bros.

Available for purchase : a wide selection of Hy Flo (HyFlo, Hy-Flo) pumps, originally manufactured by Medcalf Bros. Ltd. of Potters Bar, England...

Exquisite looking, near silent pumps - both functional and aesthetically pleasing - these remarkable show-pieces are a British design classic, and in recent years have become increasingly difficult to track down.

Out of production for close to three decades, still regarded as being light-years ahead of the competition.

Models available : "A", "B", "C" and "Junior" Hy Flo Pumps available including both aquarium and technical/laboratory pumps (please use the menu provided above to look at individual models).

Discounts are available for multiple purchases.

All pumps come with an instruction/maintenance sheet - available for download.

When available, we also have a limited number of spare parts for various models.

New Feature !! : reference list of all recorded pump plates with serial numbers.

New Feature !! : youtube videos of Hy Flo pumps, including a new service / maintenance video.

If you are unable to find the pump you are looking for, or just have a general enquiry, please feel free to drop us a line at:
and we'll get straight back to you.

We can also offer service and repair facilities - if you are experiencing a problem with your pump, again, just get in touch with us at : and we'll try to help.

!!! Latest Stock !!!
- 23 April 2024 -

Model C Aquarium Pump

Model C pump with dual output and vacuum inlet components.
Perfect working order and good condi... [click for details & full pictures]

Model C Aquarium Pump

Model C pump with dual output and vacuum inlet components.
Perfect working order - poor cosmeti... [click for details & full pictures]

Model C Hy Flo Pump

Model C pump with dual output and vacuum inlet components.
In good working order with a fair am... [click for details & full pictures]

Model C Hy Flo Pump

Model C pump with dual output and vacuum inlet components. Pump has mis-matched pistons.
Pump ... [click for details & full pictures]

Model B Technical / Laboratory Pump

Dual piston laboratory pump.
An excellent runner, with both air and vacuum components.
In ... [click for details & full pictures]

Model B Technical / Laboratory Pump

Dual piston laboratory pump.
An excellent runner, with both air and vacuum components.
In ... [click for details & full pictures]

Model B Laboratory Pump

Dual piston laboratory pump.
An excellent runner, with both vacuum and air components.
In ... [click for details & full pictures]

Single Outlet Junior Aquarium Pump

Single outlet "Super Junior" aquarium pump. Excellent working order with some minor cosmetic wear to... [click for details & full pictures]

Single Outlet Junior Aquarium Pump

Single outlet "Super Junior" aquarium pump. Very good working order with minor cosmetic wear to the ... [click for details & full pictures]

Junior Aquarium Pump

Junior Hy Flo in good working order.
Good runner - some to the pump shell paintwork.
Seri... [click for details & full pictures]

Junior Aquarium Pump

Junior Hy Flo in good working order. The pump is dirty and there is some minor cosmetic wear to the ... [click for details & full pictures]

Model A Aquarium Pump

Early model A in fair cosmetic condition - would benefit from a clean.
There is significant los... [click for details & full pictures]

- site last updated : 23 April 2024 -
- all content and images protected by copyright - ©mmxix

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