There is a reason we do not differentiate between hot and cold with our part IDs.
It would be imperfect to do so. The use of the stems and cartridges vary with the installation type. Historically, stems were described by the thread direction used, which changed depending on the handle type and whether the faucet was on a deck or a wall.
When it comes to two-handle faucets and valves, round and cross handles are used when the valves turn the same direction. In this case, the valves and handles will turn off clockwise, regardless of whether stems or cartridges are on a deck, slant-back, or wall.
The stems turn off in opposing directions only if lever handles are involved in the install. The orientation of the on/off operation in this situation is dependent on if the ﬁxture is on a deck, a wall, or a slant back.
When lever handles are used on a deck, they should be rotated in towards the user to turn the water on and pushed away from the user to turn the water off. Thus, the hot side (on the left) should turn off clockwise, and the cold side (on the right) should turn off counter-clockwise.
However, when the faucet or valve is installed on a slant back or onto a wall, lever handles should operate inversely. The reason for this is due to gravity. Decorative, heavier levers might unintentionally turn the water on if installed and operated the same as the deck stems. To avoid this, the water turns on when the handles are turned upwards and the water is shut off when the handles are rotated downwards.
This means that now the hot side (on the left), turns off counter-clockwise and the cold side (on the right) turns off clockwise.
It is for these reasons that we do not use the terms “hot” and “cold”
in our part IDs.
On the "LF455362" cartridge, the stem is held in place by a clip. There is a plunger operated by the stem that moves up and down and turns the water off.
The majority of non-rising units are found in the decorative market. That being said, the most common and prevalent of these units are the Kohler Valvet (pictured left). They are the most popular of the non-rising units and have been around for the longest time.
The most obvious instances of a right hand thread turning off counter-clockwise and a left hand thread turning off clockwise are found in both the Chicago Faucet stem units and Crane Dialeze stem units. In both of these cases, the stem still rises. In doing so, the washer seals and stops the ﬂow of water.