Hello,

I'm installing a 5000l/h (PL-0867) flow meter. I'm looking at purchasing the metric pvc fittings (PL-1665). On the website I see that the sizing is DN20 (20mm pipe) does this equate to 20mm ID and 26.7mm OD? My aquarium has DN20 pipe (ID 20mm, OD 26.7mm).

Thank you!
Norm