Why won´t a LP hose fit in the LP port of my old Cyklon 1st stage?

On older Cyklon 1st stages, the standard thread size of all ports were 1/8.

Today, all LP ports are 3/8 and all HP ports are 7/16 sized.

If you have an older style 1st stage, there are adaptors that can be used, so you can attach standard sized hoses to your 1st stage.

Male 1/8 --> female 3/8 thread (Article number 2415)
Male 1/8 --> female 7/16 thread (Article number 2910)

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