Philmac 25 x 15mm Metric Imp Copper Connection Kit

[Fallout]

Any one know which way around the 3 pieces to this kit go. I know I need to remove the grab ring from the 25mm mdpe philmac fitting but unsure which way around the reducing kit goes.

 

[Fallout]

Philmac 25 x 15mm Metric Imp Copper Connection Kit 86032

Click to enlarge

Philmac 25 x 15mm Metric Imp Copper Connection Kit 86032

 

[copea]

Both bits are upside down in those photos.
The silver ring makes contact with the wider end of the rubber bung.

 

[Fallout]

Thanks so what goes in the fitting first the rubber or then plastic bung? Thanks there no instructions with it

 

[copea]

Narrower end of the rubber adapter goes into the fitting, then the 15mm copper pushes into the wider end.
The silver ring and plastic piece together secure it in place.