What size vacuum inlet is the Mirka 4M Sander Extraction Hose + Connector?

The Mirka extraction hose connects to the extractor with a 34mm / 40mm outer diameter connector.

The Mirka dust extractor hose has a 34mm / 40mm outer diameter where it connects to the extractor. The connector is designed with a step which is the reason for the two different numbers.

The hose connects to the sander with a 27mm diameter connector.

Hose length	4M
Diameter to sander (Inner)	25mm
Diameter to sander (Outer)	27mm / 32mm
Diameter to the extractor (Inner)	32mm
Diameter to the extractor (Outer)	34mm / 40mm

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