Silverline Mini In Line Oiler 1/4" BSP

Amazon

Anodised body for corrosion resistance 1/4" BSP male and female threads Provides constant lubrication for air tools Maximum operating pressure 8.0bar Overall length 55 mm, Weight: 0.1763698096 pounds, Manufacturer: SLTL4

Electrical World

Automatic in-line oiler for small tools. Anodised body for corrosion resistance. Transparent polycarbonate reservoir shows when oil is low. 1/4" BSP male and female connections. Overall length 55mm.

Zoro Tools

Automatic in-line oiler for small tools. Anodised body for corrosion resistance. Transparent polycarbonate reservoir shows when oil is low. 1/4" BSP male and female connections. Overall length 55mm.