I just replaced it and the lines heading toward my internal plumbing.
I too saw some black sealant and was worried that it might be glued in, but as previously mentioned the entire filter assembly unscrews and uses 1/2 standard plumbing threading.
I replaced my filter as well because the black rubber seal ring/gasket had lost it's original elasticity. I replaced it with this: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
That new ShurFlo will screw right into your tank and give you the added advantage of having a bottom filter casing that allows you to clean the filter without dissembling the plumbing.
When I screwed in my new filter, I wrapped it liberally with teflon plumber's tape and even ran a bead of silicon between it and the tank... then let the whole thing sit for a couple of days to give the silicon time to set up. It can still be removed if I gave it a good counter-clockwise twist... but no drips at all.
If you go the route of the new filter instead of just trying to wrap the existing threads in tape and re-installing, you're going to find that every piece of new plumbing you put in as a connection issue with that older style grey piping. For me, I ended up cutting out that entire section, adding the new filter and then using PEX tubing with a 3/8" Sharkbite connector to attache the new PEX to the old grey 3/8 inch piping. Your's looks like you've got a fitting much closer than the filter than mine.
For what it's worth, I also dropped the entire fresh water tank, spray cleaned the inside and had new mounting beams made as mine were very bowed.
Good luck and feel free to contact me as I've just gone through all that with my '96 Roadtrek.
Originally Posted by did
Thanks....so it just screws out.