FURminator Undercoat Deshedding Tool for Dogs
As an Amazon Associate we earn from qualifying purchases.
FURminator sells its undercoat deshedding tool in three size classes, and each class is split by coat type, so the same name covers several different listings. This guide covers seven FURminator undercoat deshedding listings on Amazon, sorted by the dog weight each listing states, checked on 2026-10-18.
Weight class decides which tool you need: small is under 25 lb, medium is 25 to 50 lb, and large is over 50 lb. Two listings are sets that add a spray or a conditioner, and one adds a grooming brush. We show what each listing says it includes and where the wording is unclear.
Quick answer
For a dog over 50 lb, FURminator lists a Large tool for long hair and a Large tool for short hair. For a dog of 25 to 50 lb, the Medium short hair tool is the plain tool, and the Ultimate Bundle and the conditioner set add a product to it. For a dog under 25 lb, the Small short hair tool and the Small dual grooming brush are the two listings.
The long hair and short hair versions of the same size differ in weight on the listings: the Large long hair tool is listed at 9.14 oz and the Large short hair tool at 7.84 oz. The text we opened does not explain the difference in the teeth or the edge, so read the product label.
How we chose
We searched Amazon for “furminator undercoat deshedding tool for dogs” and kept listings that sell a FURminator undercoat deshedding tool on its own or in a set with one. We left out the FURminator shampoo, the grooming rake for thick coats, and the listings for the kilogram-labelled small and extra small tools. Seven listings matched, and each was opened once.
Criteria: the dog weight class on the listing, the coat type named, what is in the package, the dimensions and weight where the listing gives them, and the wording on the edge, the release button, and the handle. We do not repeat the percent-reduction claims from the listings, we do not show prices or ratings, and we make no claim about how much hair a tool removes.
Comparison table
| Listing | Dog weight (listing) | Coat named | What the listing says is included | Size and weight (listing) |
|---|---|---|---|---|
| Large, long hair | over 50 lb | long hair | deshedding tool | 6.5 x 2 x 8.75 in, 9.14 oz |
| Large, short hair | over 50 lb | short hair | deshedding tool | 2 x 6.5 x 8.75 in, 7.84 oz |
| Medium, short hair | 25 to 50 lb | short hair | deshedding tool | 2 x 5 x 8.75 in, 7.2 oz |
| Small, short hair | less than 25 lb | short hair | deshedding tool | 2 x 5 x 8.75 in, 6.08 oz |
| Ultimate Bundle (set of 2) | 25 to 50 lb | long hair | Medium tool and rinse-free spray | 10.79 x 8.31 x 2.52 in package, 1.39 lb |
| Small dual grooming brush | under 25 lb | not named | deshedding tool and grooming brush | dimensions not in the text we opened |
| Medium tool and conditioner | 25 to 50 lb | not named | tool and conditioner, not spelled out | dimensions not in the text we opened |
FURminator Large Dog Undercoat deShedding Tool for Long Hair
Best for: a dog over 50 lb with long hair, such as a large dog with a long coat.
Skip if: your dog weighs less than 50 lb. The listing is written for dogs over 50 lb.
The listing says the tool is designed especially for dogs that weigh more than 50 pounds and names long hair in the title. It describes a FURejector button that releases the hair, an ergonomic handle, and an edge that reaches through the topcoat to remove loose undercoat hair without cutting skin or damaging the topcoat when used as directed. The title says to use it weekly.
The product details give 6.5 x 2 x 8.75 inches and 9.14 ounces, and the size menu shows Small, Medium, and Large. The listing says the tool is guaranteed to work or your money back, and points to the product label for the terms.
Check the current price and details for the FURminator Large long hair tool on Amazon
FURminator Large Dog Undercoat deShedding Tool for Short Hair
Best for: a dog over 50 lb with a short coat.
Skip if: your dog is under 50 lb or has a long coat that matches the long hair listing instead.
The bullets match the long hair listing in wording: dogs that weigh more than 50 pounds, a FURejector button, an ergonomic handle, and loose undercoat hair removed through the topcoat. The product details give 2 x 6.5 x 8.75 inches and 7.84 ounces, which is 1.3 ounces lighter than the long hair version.
The product details show the same best sellers rank for this listing and the long hair version. Choose the coat type that matches your dog, then confirm the size on the page.
Check the current price and details for the FURminator Large short hair tool on Amazon
FURminator Medium Dog Undercoat deShedding Tool for Short Hair
Best for: a dog of 25 to 50 lb with a short coat, in the plain tool with no extras.
Skip if: you want a set with a spray or a conditioner. The listing sells only the tool.
The title says “For 25-50 lbs” and the first bullet says it is designed especially for dogs that weigh 25 to 50 pounds. It lists the same FURejector button, ergonomic handle, and edge wording as the Large tools. The product details give 2 x 5 x 8.75 inches and 7.2 ounces.
This is the tool the two Medium sets below are built around, so compare it with the Ultimate Bundle and the conditioner set if you want more than the tool.
Check the current price and details for the FURminator Medium short hair tool on Amazon
FURminator Small Dog Undercoat deShedding Tool for Short Hair
Best for: a dog under 25 lb with a short coat.
Skip if: your dog is 25 lb or more. The listing says dogs less than 25 lb.
The title says “For Dogs Less Than 25 lbs” and the first bullet repeats it. The listing gives the same FURejector button and ergonomic handle wording as the other single tools. The product details give 2 x 5 x 8.75 inches and 6.08 ounces, the lightest of the single tools in this list.
The Small and Medium short hair tools have the same listed dimensions of 2 x 5 x 8.75 inches, but different weights, 6.08 ounces and 7.2 ounces. The text we opened does not say what accounts for the weight gap, so pick by the dog weight class.
Check the current price and details for the FURminator Small short hair tool on Amazon
FURminator Ultimate Dog deShedding Bundle, set of 2
Best for: an owner of a 25 to 50 lb dog who wants the Medium long hair tool plus a rinse-free spray in one purchase.
Skip if: you only want the tool. The set adds a spray.
The listing says the set includes the Medium Dog / Long Hair deShedding tool and a Rinse-Free deShedding Spray for dogs of 25 to 50 lb, and calls it a two step program for weekly touch-ups. It says the spray includes OdorCapture 360 technology that helps neutralize pet odors.
The bullets include a percent claim for reducing loose hair, marked with asterisks, which this guide does not repeat or verify. The package dimensions are 10.79 x 8.31 x 2.52 inches and 1.39 pounds in the product details. The size menu shows only Medium.
Check the current price and details for the FURminator Ultimate deShedding Bundle on Amazon
FURminator Small Dog Undercoat Deshedding Tool Dual Grooming Brush
Best for: an owner of a small dog under 25 lb who wants a deshedding tool and a finishing brush in one listing.
Skip if: you need dimensions or a weight before you buy. The text we opened does not give them.
The listing says the deshedding tool has a FURejector button for small dogs under 25 pounds, a stainless steel edge, and a skin guard. The grooming brush has metal bristles to remove loose hair and nylon bristles to smooth the coat, with an ergonomic non-slip handle.
The listing does not name a coat type. It is the only listing here that pairs a deshedding tool with a brush, so it covers two jobs in one purchase for a small dog.
Check the current price and details for the FURminator Small dual grooming brush on Amazon
FURminator Medium Dog Undercoat Deshedding Tool with Ultra Premium Deshedding Conditioner
Best for: an owner of a 25 to 50 lb dog who wants a tool and a conditioner from the same brand.
Skip if: you want the listing to spell out the package. The bullets mix tool and conditioner wording without a clear list of what is in the box.
The first bullet says the product is for medium dogs weighing 25 to 50 pounds and formulated without parabens. The tool bullets mention a stainless steel deshedding edge and a curved edge, each marked as applying to the deshedding tool. The conditioner bullets mention odor capture technology and omega 3 and 6 fatty acids, each marked as applying to the conditioner.
The title names both a tool and a conditioner, but the text we opened does not list the exact items in the package. Open the page and check the “what is in the box” section before buying. This guide does not repeat the coat or skin claims in the conditioner bullets.
Check the current price and details for the FURminator Medium tool and conditioner set on Amazon
Worked example: choosing a size by weight
Say you have three dogs: a 60 lb Labrador with a short coat, a 35 lb mixed breed, and a 15 lb terrier. By the listing weight classes, the Labrador falls under Large (over 50 lb), the mixed breed under Medium (25 to 50 lb), and the terrier under Small (less than 25 lb).
If one dog sits near a boundary, such as a 50 lb dog, the Large listing says “over 50 lb” and the Medium listing says “25 to 50 lb”, so the 50 lb figure is in the Medium range. A dog at 24 lb is Small and at 26 lb is Medium. Check the coat type last, since the long hair and short hair versions are separate listings.
Mistakes to avoid
Buying by the FURminator name alone. The same name covers Small, Medium, and Large tools, and several set listings that include other products.
Assuming a set lists its contents. The conditioner listing names a tool and a conditioner, but the text we opened does not spell out the package. Check the box contents on the page.
Skipping the label directions. The listings say the tool works as directed and the titles say to use it weekly. Read the product label for the directions, and ask your groomer or vet if your dog has skin problems.
Who should skip a deshedding tool
Skip a deshedding tool if your dog has a very short single coat with little undercoat, or if you only want to clean up hair on the floor and furniture. A tool does not stop hair from landing on seats; for car hair, see our guide on car seat covers that repel dog hair. For other grooming jobs, see nail grinders versus clippers and how to use a pet nail grinder.
Frequently asked questions
What size FURminator do I need? Pick by dog weight: Small is for dogs under 25 lb, Medium for 25 to 50 lb, and Large for dogs over 50 lb, according to the listings.
What is the difference between the long hair and short hair FURminator tools? The listings name the coat type in the title, and the Large versions differ in listed weight: 9.14 oz for long hair and 7.84 oz for short hair. The text we opened does not explain the difference in the edge, so check the product label.
Does the FURminator Ultimate Bundle include a tool? Yes. The listing says the set includes a Medium Dog / Long Hair deShedding tool and a Rinse-Free deShedding Spray, for dogs of 25 to 50 lb.
How often does the listing say to use it? The titles of the single tool listings say to use it weekly.
Is there a FURminator deshedding tool for small dogs? Yes. The Small short hair tool is listed for dogs less than 25 lb, and the Small dual grooming brush adds a finishing brush for dogs under 25 lb.
