chrisg3103 Forum Supporter Messages 790 May 12, 2021 #1 Looking at replacement cylinders and I have 2 candidates, one code starts with hfr one nfr. But all the listing are hfr/nfr, anyone know what the difference is?
Looking at replacement cylinders and I have 2 candidates, one code starts with hfr one nfr. But all the listing are hfr/nfr, anyone know what the difference is?
Barking Mat Cuddler of hedgehogs. Messages 13,334 Location France, Brittany. May 12, 2021 #2 high flow rate normal flow rate? just guessing.