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Pet MD Veterinary Tris Flush Cat & Dog Ear Cleaner - Dog Ear Flush - 12 oz Review

By Marcus Bell · Dog nutrition editor · Published 2026-05-25 · Updated 2026-06-24

4.6 (8,500) Amazon rating$16.991,000+ bought last month

Our verdict

Pet MD's Veterinary Tris Flush is a 12 oz ear cleaner for cats and dogs built around a tris flush formula, and with 8,500 reviews averaging 4.6 stars, it's one of the most reviewed ear cleaners in this whole lineup.

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Best for

Owners who want a larger 12 oz bottle of a vet-style tris flush cleaner for ongoing ear maintenance in dogs or cats.

Skip if

You're looking for a scented or specialty formula, since no flavor or fragrance details are listed for this straightforward flush.

Our scorecard

4.6/5 overall
  • Owner rating4.6/5

    4.6 average across 8,500 owner ratings

  • Popularity4.4/5

    8,500 owner reviews, more than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

['This 12 oz bottle from Pet MD is built around a tris flush formula and labeled for use in both cats and dogs, giving it a larger format than many of the 4 to 8 oz cleaners in this category.', "It's positioned as a straightforward flush cleaner for ongoing ear maintenance rather than a specialty scented or medicated product, with the tris flush name reflecting a cleaning approach familiar from veterinary use.", "At $16.99, it costs a bit more than the smaller bottles here, but with about 1,000 units bought last month and 8,500 reviews at a 4.6 star average, it's one of the best-selling and most reviewed ear cleaners on this whole list."]

Pros

  • 12 oz size lasts longer than smaller 4 to 8 oz bottles
  • Tris flush formula reflects a familiar veterinary-style cleaning approach
  • Works for both cats and dogs
  • Very large review base of 8,500 with a strong 4.6 average
  • High recent purchase volume suggests broad trust

Cons

  • No ingredient or directions detail is listed beyond the tris flush name
  • Unscented, straightforward formula won't appeal to owners wanting a scented option
  • Larger 12 oz bottle takes up more shelf space than travel-size options

Performance notes

Built around a tris flush formula in a 12 oz bottle, this is sized for households doing regular ear maintenance rather than a single occasional cleaning.

What buyers say

With 8,500 reviews at a 4.6 star average and about 1,000 units bought in the past month, this is among the best-selling and most reviewed ear cleaners on this list, suggesting broad, repeat use.

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Frequently asked questions

What is a tris flush?

It refers to the type of cleaning solution used, a formula style commonly used in veterinary ear cleaning products, as reflected in this product's name.

Is this safe for cats as well as dogs?

Yes, it's labeled for both cats and dogs.

How big is the bottle?

It comes in a 12 ounce bottle, larger than many 4 to 8 oz ear cleaners.

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