This topic has had a lot of action in other threads. If you do a search you will find many of them.
However one of the best places to buy parts is the
RV Water Filter Store. This is a great place to find the best parts.
From this store:
I bought a special 36' non kink hose. I don't need any extra to reach any shore water so far. Their hoses are tested to 200 PSI so you can connect them directly to the shore water.
I bought a special 4' non kink hose.
I bought a Watts Brass Model N55BG Adjustable Regulator, 2" diameter 0-160 all stainless oil filled gauge, 6-9 gpm.
I bought a brass Pressure gauge
I bought Kwik Link Connect System - 90 degree
I bought about 10 Brass Quick Connects
From Lowe's I bought 2 Westinghouse clear water filter canisters and connected them togeather. I also bought heavy duty Y with valves.
I connect the Y to the shore faucet. This Y also has quick disconnects on both outlets. I connect my hose to one of the Y outlet using a quick disconnect. I connect a water pressure gage on the hose with quick disconnects then connect to my water filter using quick disconnects. Then I connect my regulator on to the output of the water filter and take the 4' hose and quick connect to the regulator and the other end connects with the Kwik 90* to the fresh water inlet in the UDC. I have a 50' hose with a valve on it and quick connects. When I want to flush my black tank or wash the TV or Trailer I just snap it onto the second outlet of the Y with no problems.
I love the quick connects. Also be sure to use brass quick connects. Lowe's have quick connectors that are brass colored but are aluminum. If you use them with the brass hoses they will have a chemical reaction which will bond them togeather. Save your money and use the brass only.
BC