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Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections

Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections

4.1· 22 ratings

Best price now

$135.29at Home DepotObserved at 4:56 PM

Compared across 5 stores. Prices are checked against each store and labelled with when.

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Our take on the Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections

The Kohler 300-KR-NA is a 1/2-inch ceramic quarter-turn valve with rigid connections, built for deck- or rim-mounted Roman and garden tub fillers. The ceramic disc cartridge gives a smooth quarter-turn on and off, and the high-flow design is meant to fill a tub quickly. At $101.01 at eBay as of November 4, 2026, it sits at the low end of its recent range, with 6 stores listing it new.

Best forRoman and garden tub installationsDeck- or rim-mounted filler setupsOwners replacing a worn tub valveFast tub filling in a remodel
Pros
  • Ceramic disc valve resists wear and drips
  • Quarter-turn control is quick and easy
  • High-flow design fills a tub faster
  • Rigid connections give a solid, stable fit
  • Brass and ceramic construction
Cons
  • Single-handle control only
  • Rough-in dimensions are large for tight spaces
  • Price varies widely between stores
  • Specialty part, so returns are less convenient

Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections prices at every store

  • WayfairNew

    In stock

    $135.29Observed at 4:56 PM
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  • Home DepotNew

    In stock

    $135.29Observed at 4:56 PM
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  • Ferguson HomeNew

    In stock

    $142.61Observed at 4:56 PM
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  • Easy PlumbingNew

    In stock

    $145.26Observed at 4:56 PM
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  • ZoroNew

    In stock

    $159.99Observed at 4:56 PM
    Visit store

Also available at

  • eBayCheck price at eBay
  • AF SupplyCheck price at AF Supply
  • General Plumbing SupplyCheck price at General Plumbing Supply
  • Guillen PlumbingCheck price at Guillen Plumbing
  • PerigoldCheck price at Perigold
  • PlumbtileCheck price at Plumbtile
  • relyonpdi.comCheck price at relyonpdi.com
  • Shop Kohler NJCheck price at Shop Kohler NJ
  • SupplyHouse.comCheck price at SupplyHouse.com

Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections price history

Lowest price we've seen: $135.00 on Nov 4 at Perigold. Tracked across 13 stores since Nov 4.

What reviewers say

Ratings average 4.1 out of 5 from 22 buyers, which points to general satisfaction with fit and operation. A few report leaks or rough operation out of the box.

Pros
  • Smooth quarter-turn action
  • Solid build quality
  • Fits standard Roman tub rough-ins
Cons
  • Occasional leaks at connections
  • Some units arrive with stiff handles

Specifications

Material
Ceramic, Brass
Size
1/2 inch
Valve Type
Ceramic Valve
Connection Type
Rigid Connections
Depth
11.0 in
Height
3.25 in
Width
8 in
Control Type
Quarter-turn
Type
Valve
Pipe Size
1/2 inch
Compatible With
Bath
Mounting Location
Deck-mount, Rim-mount
Installation Location
Bath
Flow Rate
High-Flow
Pressure Rating
0 PSI (maximum pressure)
Number Of Handles
Single Handle
Style
Roman (Garden) Tub
Included Components
Rigid connections
Typical Users
UNISEX, ADULT

Questions and answers

Is the Kohler 300-KR-NA worth it?
For a Roman or garden tub that needs a fast-filling, quarter-turn valve, yes. At $101.01 at eBay as of November 4, 2026, it is at the low end of its recent range.
What is the difference between this and a standard tub valve?
This uses a ceramic cartridge and rigid connections, so it turns a quarter turn instead of multiple turns and is built for high flow. Standard valves often use compression cartridges.
Will it fit my tub deck?
It is designed for deck- or rim-mount Roman tub installations with 1/2-inch pipe. Check the 11-inch depth and 8-inch width against your rough-in before ordering.
What is included in the box?
The valve with rigid connections. Trim, spout and handles are typically sold separately, so confirm the listing contents before buying.
When is the price lowest?
Prices vary by store; the $101.01 eBay listing as of November 4, 2026 is the lowest of the 6 stores pricing it new. Compare stores before buying.
Where is the Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections cheapest?
At Home Depot, for $135.29, as of our latest check.
What do buyers say about the Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections?
Rated 4.1 out of 5 from 22 ratings.
Where can I buy the Kohler 300-KR-NA 1/2 Ceramic High-Flow Valve with Rigid Connections?
14 stores we checked sell it, including Wayfair, Home Depot, Ferguson Home, Easy Plumbing, Zoro.

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