Kohler single-flush canister toilets take canister seal GP1059291

Last updated: 2026-10-27

For a Kohler single-flush canister toilet, Kohler lists canister seal GP1059291, a yellow seal that "Replaces red seal".

Source: Kohler Toilets Service Parts brochure (2020), Canister (Single-Flush) Toilets.

Canister or flapper

Kohler: "If you have a single-flush canister toilet, you will see a cylinder-shaped flush valve inside the tank instead of a flapper. The seal in the canister works similar to a flapper." (Kohler brochure).

Kohler canister parts

Part	Kohler part number	Kohler's note
Canister seal	GP1059291	Proprietary formulated yellow seal; replaces red seal
Fill valve, grey stem with small insert	GP1138930	"Match stem color and insert size"; cap color does not matter
Fill valve, black stem with large insert	GP1083167	Same rule
Canister guide, cap and chain	GP1229656	"Guide it" kit
Two-piece tank gasket	GP51487 (triangle kit), GP1018165-F (3" DryLock), GP1112256 (2" DryLock)	Two-piece canister toilets have one of these

Source: Kohler brochure, single-flush canister page. Kohler: "GP1059291 is the same part as previous part number 1059291 but in a blister package."

Kohler's detailed matrix (brochure pages 14–25) lists each canister toilet model. Find your K-number there; see find your tank number.

Sources

Kohler, Toilets Service Parts brochure (PDF, 2020): https://resources.kohler.com/webassets/kpna/brochures/Toilet_ServiceParts_Brochure_FINAL.pdf (read 2026-10-27)

Last checked 2026-10-27.