The Kohler Memoirs Stately K-6669-0 is a comfort-height two-piece elongated toilet that blends traditional styling with a more polished concealed-trapway base. Its 1.28 GPF AquaPiston flush is designed to deliver efficient gravity-flush performance without the water use of older high-volume toilets. Because the seat is sold separately, it leaves room for buyers to choose a standard, slow-close, or bidet-compatible elongated seat.
What rough-in does the Memoirs Stately K-6669-0 use?
This model is built for a 12-inch rough-in. Measure from the finished wall to the center of the closet bolts before purchasing so the bowl and tank assembly fit correctly. That basic measurement prevents most installation issues with floor-mounted toilets.
How capable is the AquaPiston flush on this concealed-trapway Memoirs toilet?
The AquaPiston system is a gravity-flush design that releases water quickly through a canister valve for a stronger bowl rinse and waste carry than many conventional flapper setups. Even though it uses only 1.28 gallons per flush, it is intended to provide full-performance residential flushing. For most homes, it is a practical balance between efficiency and dependable everyday use.
Can I install any elongated seat on this toilet?
You can install an elongated seat, but fit should still be confirmed against Kohler's bowl shape and mounting dimensions. Since the toilet does not include a seat, many buyers use that flexibility to select a slow-close seat or an upgraded seat with easier cleaning hardware. It is worth checking compatibility first if you plan to add a bidet seat or a thicker specialty seat.
What is the benefit of Comfort Height on the K-6669-0?
Comfort Height raises the seated position to a more chair-like level than a standard-height toilet. Many adults find that easier on the knees and hips, particularly for a primary bathroom that sees heavy daily use. It can also be a better long-term accessibility choice for aging households.
Is this toilet water efficient and WaterSense certified?
Yes. Its 1.28 GPF flush rating puts it in the high-efficiency category compared with older 1.6 GPF and 3.5 GPF toilets. Under the rules for this product set, 1.28 GPF toilets are marked WaterSense certified. That gives this model efficiency credentials without changing the familiar two-piece format.
# Kohler Memoirs Stately Comfort Height Two-Piece Elongated Concealed Trapway Toilet **Model:** `K-6669-0` **Brand:** Kohler **Category:** Toilet > The Kohler Memoirs Stately K-6669-0 is a comfort-height two-piece elongated toilet that blends traditional styling with a more polished concealed-trapway base. Its 1.28 GPF AquaPiston flush is designed to deliver efficient gravity-flush performance without the water use of older high-volume toilets. Because the seat is sold separately, it leaves room for buyers to choose a standard, slow-close, or bidet-compatible elongated seat. ## Specifications | Attribute | Value | |---|---| | Product Type | two-piece | | Bowl Shape | elongated | | Gpf | 1.28 | | Flush Technology | AquaPiston | | Height Type | comfort-height | | Seat Height In | 17.5 | | Trip Lever | left-hand | | Trapway | concealed | | Rough In In | 12 | | Seat Included | No | | Color Finish | White | | Water Sense Certified | Yes | | Warranty | Limited Lifetime | ## What's Included - Two-piece toilet (tank and bowl) - Left-hand trip lever - Mounting hardware Source: https://www.jaspecs.com/kohler/toilet/k-6669-0-kohler-memoirs-stately-comfort-height-two-piece-elongated-concealed-trapway-toilet/