Follow Us RSS Feed Google+ Linked In Facebook Twitter

My Basket Your Basket » (0 items)

CALL: +44 (0)1922 218 218

Post Boxes | Letter Boxes | Mailboxes | Post Boxes UK

HR370 1 Through Wall Letter Boxes Post Box Mailbox

HR370 1 Through Wall Letter Boxes Post Box Mailbox

HR370-1 through wall letter boxes are the wider shallower version of our standard rear retrieval post box HR300-1. 
This dual access mailbox conforms to EN13724 (can accept A4 mail without having to fold or bend the post, and has an anti-theft baffle), and is also Royal Mail approved.



It has dimensions of 370mm width, 110mm height and 270mm depth (380mm extended depth), and is a front-entry rear-retrieval dual access post box (in-front, out-back). Where applicable, it complies to Secured By Design requirements (clauses 21.19 / 24.6).

The model HR370-1 is designed to built into a bank of multiple postboxes - larger bank sizes of approximately 50 units is possible.

HR370-1 through wall letter boxes are available in any RAL finish, many of which are in-stock. It is also available in any other RAL finish for which there is a small additional charge. Gloss levels can also be specified as required. It is also available in (brushed) satin stainless steel, and bronze, silver and gold anodised finishes.

The H370-1 rear access mailbox has a high security Eurolock cylinder and each unit comes complete with 2 keys. Additional keys can be requested at the time of order.

It is available with a one piece front plate in 2mm thickness (for through wall post box systems) or a 24mm thermally bridged one piece front plate, which is designed to replace a double glazed unit, held in place by the glzing profile. 

The model HR370-1 can also be fitted with an internal fire extinguisher thus creating a fire proof postal box system.


  • Manufactured and bank-assembled in Europe.
  • Through wall letter boxes suitable for through wall, through / in railings, and in glazed door entrance application.
  • Dimensions per unit: 370 x 110 x 270/380mm (width, height, depth).
  • Aperture size: 325 x 35mm. Conforms to EN 13274 (accepts A4 envelope without having to fold or bend; anti-theft flap to inner aperture).
  • Mailbox body and door manufactured from galvanised steel, flap manufactured from cast aluminium.
  • Secured By Design compliant (clauses 21.19 / 24.6) where applicable.
  • High / large capacity versions available – model HR370-2 (220mm tall) and HR370-3 (330mm tall).
  • Each mailbox comes complete with 2 keys (500 differs). Additional post box keys available at time of order only.
  • Secure postbox, with 1.2mm thick steel doors, high quality Eurolock lock and extra wide security flap to inner aperture.
  • Hinged to right, side opening.
  • Available in any RAL colour of choice – please see our RAL colour chart. Also in brushed (satin) stainless steel marine grade 316, and bronze, silver and gold anodised finishes.
  • Numbering and lettering to flap can be specified for an additional charge.
  • Choice of surrounds and support legs depending upon type of application.
  • Blank plate (without flap) can be specified for uneven bank configurations.
  • Post Boxes UK recommends a maximum single unit bank size of 50 through wall letter boxes in an five wide ten high configuration (5w 10h). Should you wish to specify a larger bank size than this, please call us on +44 (0)121 288 0838 to discuss.


Should you require any further information regarding HR370-1 through wall letter boxes or wish to discuss your enquiry, please call Post Boxes UK today on +44 (0)121 288 0838. Alternatively, your enquiry can be emailed to and where possible, we would that drawings be sent in pdf format. Thank you.

Price: POA Email Your Enquiry
« Previous | Next »