Part family guide
Kohler Rite-Temp Cartridge Generations
Rite-Temp spans multiple Kohler valve generations; GP800820 is an official pressure-balancing unit for specified Rite-Temp valves, but older bodies may require a different mixer-cap or service-kit combination.
Direct answer
Do not treat Rite-Temp as one cartridge number. Identify the valve generation and compare the pressure-balancing unit and mixer-cap arrangement with Kohler’s service parts diagram; GP800820 applies only where Kohler lists that unit.
Fit facts
What identifies this match
Use these details together. One matching feature does not establish compatibility.
- Platform
- Kohler Rite-Temp
- Current family member
- GP800820 pressure-balancing unit
- Assembly distinction
- Pressure-balancing unit may be serviced separately from mixer cap
- Primary evidence
- Valve model and Kohler service parts diagram
- Generation clue
- Shape and fastener pattern behind trim
- Boundary
- Rite-Temp trim does not prove one internal generation
A platform with several service generations
Kohler has used Rite-Temp for pressure-balancing shower valves over a long production span. Current and legacy valves can share the platform name while exposing different service assemblies behind the escutcheon.
Unit versus complete cartridge
Kohler’s terminology matters: GP800820 is described as a pressure-balancing unit. On some Rite-Temp arrangements the mixer cap and pressure-balancing unit are separate service components, unlike a one-piece cartridge expectation.
Record which component is leaking or seized and follow the valve’s diagram rather than replacing every round plastic component by resemblance.
Generation identification
Use the rough-in or valve model when available. Otherwise compare the screw pattern, mixer-cap profile, balancing-unit interface, and official exploded view after safely removing trim.
A newer Kohler Genuine Parts number may represent a superseded service package, but accept that direction only when Kohler cross-references the old number or the model diagram has been updated.
Lookalike limits
Kohler thermostatic valves, volume controls, and non-Rite-Temp ceramic cartridges are separate systems. Similar circular bodies and Kohler-branded trim are not sufficient fit evidence.
Questions
Before you remove or replace the part
Does every Rite-Temp valve use GP800820?
No blanket fit should be inferred. Use the valve model and Kohler service diagram.
What is GP800820?
Kohler describes it as a Rite-Temp pressure-balancing unit for specified applications.
Why might a mixer cap matter?
Some Rite-Temp generations service the cap and pressure-balancing unit as distinct components, and their interfaces must match.
Reference trail