Actually 19mm is 3/4" (20mm plumbing fittings) so you need to go that size at least.
2.5 mm is 1/2" (which is normally 15mm in the plumbing fittings.)
Actually 19mm is 3/4" (20mm plumbing fittings) so you need to go that size at least.
2.5 mm is 1/2" (which is normally 15mm in the plumbing fittings.)
Call me Paul !
Note: I am not GHL staff!
at this point I would take what ever I can to match the flow sensor.
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