You'll need one more 1.5" NPT to 1.5" hose fitting for a backwash hose and you'll need a backwash hose.

Valves are optional but are real handy for doing maintenance on the pump and filter. I have a ball valve on the suction and return sides so I can shut off the water from the pool and clean the pump strainer etc. Unions or Quick-connects make it easy to remove equipment for winter storage or maintenance - I believe hrsdennis linked a True Union ball valve earlier in this thread - this is a valve that has unions built in on each side.