[WFPjamesWFP]

Does it matter which way you put the filter in the housing?

[John Mart]

Yes. My last one had an arrow showing the flow direction.

[WFPjamesWFP]

No arrows on my old one or this new one 

[Spruce]

Install membrane into champ pressure vessel:

Remove the end cap from the feed end (the end with only one port) –
this is achieved by pulling on the white tab which will remove the white
holding ring. The end cap can now easily be removed. Remove the
membrane from its packaging. Insert the membrane into the housing
with the black brine seal at the feed end (ie feed the membrane in with
the brine seal end going in last). Push the membrane firmly to ensure it
is fully inserted. Push in the end cap, again ensure it is fully inserted to
reveal the holding ring groove. Replace the holding ring.

[WFPjamesWFP]

Thank you spruce I appreciate that