Just the right size! The Primary toilet offers a low bowl height to accommodate users in kindergartens, grade schools, daycare centers, and children’s wards. Precision-engineered to meet the challenges of demanding conditions, this model includes a custom toilet seat equipped with a smaller opening and scalloped side handholds to make it more comfortable for children.
Features
Elongated, 10-1/2″ height bowl.
10″ x 7″ water surface size.
1-7/8″ glazed trapway.
Includes K-4686 toilet seat with scalloped handhold locations.
1-1/2″ top spud.
Material
Vitreous china.
Technology
Designed to outperform competitors in bowl cleanliness and plug resistance.
Excellent bowl rinse.
Maximum drain line carry at 1.28 gpf per ASME Standard.
Installation
Children’s height bowl.
10″ or 12″ rough-in.
Replaces Primary K-4321 and K-4384. Height and footprint may vary.
Water Conservation & Rebates
1.28 to 1.6 gpf flush range.
Ultra-low water consumption. Ideal for water conservation and earning Efficiency points in the LEED® Green Building Rating System.
This product meets water savings requirements for California Energy Commission (CEC), CALGreen, and Colorado SB 14-103.
Additional Kohler Links
View the Manufacturer Warranty
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Kohler Primary Collection
Specifications
| Collection | Primary |
| CA Drought Compliant | No |
| Approved for Commercial Use | Yes |
| TX Drought Compliant | No |
| Configuration | Bowl Only |
| Spud Placement | Rear |
| Color | White |



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