The thread of the bidet shut-off adapter is 7/8"x7/8"x 1/2" .The part 7/8 famale thread is connected to the toilet tank, and the part 7/8 male thread is connected to the water supply hose, 1/2" thread is connected to the handheld spray hose( or connector 1/2 x3/8 for 3/8" bidet toilet seat connection )
Note:
Only suitable for toilets and cannot be connected to showers or faucets.
The valve only controls the water flow of the hand-held sprayer, not affect the water flow of the toilet tank.