RS PRO Black PVC 25mm Cable Grommet for Maximum of 20.5mm Cable Dia.

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Bulk discount available

Subtotal (1 box of 100 units)*

£14.51

(exc. VAT)

£17.41

(inc. VAT)

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In Stock
  • 10 unit(s) ready to ship
  • Plus 24 unit(s) ready to ship from another location
  • Plus 110 unit(s) shipping from 03 November 2025
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Box(es)
Per Box
Per unit*
1 - 4£14.51£0.145
5 - 9£14.09£0.141
10 +£13.67£0.137

*price indicative

RS Stock No.:
605-677
Brand:
RS PRO
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Brand

RS PRO

Grommet Type

Cable Grommet

Panel Hole Diameter

25mm

Maximum Cable Diameter

20.5mm

Material

PVC

Colour

Black

Maximum Panel Thickness

1.5mm

COO (Country of Origin):
GB

RS Pro Blind Grommets with Diaphragm


This range of RS Pro blind grommets (also known as closed grommets or hole-plugs) feature a diaphragm.

Options available:


605-661 - 20mm
605-677 - 25.5mm

What is a diaphragm?


The diaphragm is a thinner PVC film that sits in the “hole” of the grommet. It surrounds smaller wires securely, for guidance and protection.
A preformed hole enables easy cable entry/exit. The diaphragm sits snug around the wire to provide a dust tight seal which is essential in many electrical installations.

Where are diaphragm grommets used?


RS Pro PVC grommets are popular for use with metal back boxes. They fit into the pre-cut discs on most metal back boxes. Wires are then thread through the hole and supported by the surrounding diaphragm.
The grommet ensures that the wire passes through the hole without coming into contact with the metal box. It also provides protection for the wire.

Features:


Black PVC
Diaphragm with hole for wire
Dust tight around wire
Pre-formed hole

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