



MK Electric 891ALM Grid Plus Metal Flush Mounting Box With 2 x 20mm Knockouts For 1 & 2 Module Grids 73mm x 73mm x 40mm
891ALM
MK Electric Grid Plus Metal Flush Mounting Box – 73mm x 73mm x 40mm, Suitable for 1 & 2 Module Grids
The MK Electric Grid Plus Flush Mounting Box is designed for use with MK Grid Plus frontplates, offering a robust and secure solution for flush installations. Ideal for both residential and commercial projects, this metal back box features pre-formed knockouts for easy conduit access.
- Flush Fit Design: Compatible with standard 73mm x 73mm Grid Plus faceplates, delivering a neat, professional finish.
- Durable Metal Construction: Manufactured from high-quality steel for strength and longevity in demanding environments.
- Dual 20mm Knockouts: Includes two 20mm side knockouts to accommodate surface conduit or cable entry with ease.
- Secure Grid Mounting: Designed specifically for 1 and 2 module Grid Plus assemblies for a stable installation.
- MK Grid Plus Compatible: Fully compatible with MK Electric’s Grid Plus range for seamless integration.
Technical Specification
- Material: Steel
- Mounting: Flush
- Dimensions: 73mm x 73mm x 40mm
- Knockouts: 2 x 20mm side knockouts
- Compatibility: Suitable for MK Grid Plus 1 & 2 module grids
✅ Choose the MK Electric Grid Plus Mounting Box for a reliable, flush-fit solution tailored to professional grid installations!

Ean Code | 5017490010629 |
Range | MK Grid Plus |
Product | Gridswitch Mounting Box |
Type | Flush Mounting Box |
Length | 73 mm |
Number Of Gangs | 1|2 |
Mounting | Flush |
Material | Aluminium |
Knockouts Included? | Y |
Number Of Knockouts | 2 |
Height | 73 mm |
Nominal Width | 40 mm |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.