* Important Note * if you have a solid or hard piped supply line you will need to replace it with a flexible supply line, this is very easy and cheap to do (and a good idea too if you haven't replaced it in a very long time). Also, you MUST have at least 7 inches of clear space above the supply valve if you do not have this clearance please let us know so we can make a custom adapter for you. Also, if your supply hose comes out of the left or right side of the valve instead of straight-up please let us know. Thank You

The simplest way to find out if you have a standard toilet supply hose is to take a 5/8" open end wrench and place it on the hose nut that attaches your toilet's supply hose to the toilet supply valve. If it fits, then you have a standard 3/8" compression-type valve and hose. "Yes, it fits! Take me back to the Order Page."    If you do not have a 5/8" open end wrench proceed to Step One.

Step one
There are three types of "Toilet Supply Line" fittings that connect up to the "Toilet Supply Shut-Off Valve"; 3/8" Compression (most common), 1/2" Compression (not very common) and 1/2" NPT (rare). To determine which one you need, take out a ruler, a piece of scrap paper and a pair of scissors. Cut a strip of paper approximately 3/8" wide. Now, cut off a piece of the strip EXACTLY - 2 & 1/4" long. At this point it will look something like "a fortune out of a fortune cookie" that would say, "Your life is about to change for the better!"  Ok, next, go to your "Toliet Supply Shut-Off Valve". Where the "Toilet Supply Line" from the water tank meets the shut off valve there is a nut, wrap the strip of paper around this nut (see the pictures below). If the strip meets end to end or overlaps a little then, bingo,you're done! You need a 3/8" Compression adapter. If the strip is too short and there is a large gap (approximately 3/8" long gap) then bango, please go on to step two. "No, I'm done! Take me back to theOrder Page."

Step Two
To determine if you need the 1/2" Compression or 1/2" NPT adapter, once again take out a ruler, this time cut a strip of paper EXACTLY - 2 & 1/2" long. Once again wrap the strip of paper around the nut. If the strip meets end to end then, bingo, you need a 1/2" Compression adapter. If the strip is too short and there is a large gap (approximately 1/4" long gap) then you need the 1/2" NPT adapter. If you still need help please call or e-mail bongo. "Now I'm done! Take me back to theOrder Page."