# VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply

Supply: VECTRA 3D flea and tick drops for dogs are a three-dose topical treatment listed for dogs weighing 11–20 lb. The listing claims monthly flea and tick prevention plus mosquito repellency, with a single-dose applicator and protection stated to become waterproof after 24 hours.

- [Original product page](https://best-deals.pro/product/vectra-3d-flea-tick-drops-dogs-11-20-lb)
- [View offer](https://best-deals.pro/visit/vectra-3d-flea-tick-drops-dogs-11-20-lb)
- Market: US
- Language: en-US
- Currency: USD
- Brand: VECTRA 3D
- Model: D73814B
- Category: Pet Supplies > Pet Grooming & Health > Pet Health
- Price: 39.99 USD
- Previous price: 49.99 USD
- Discount: 20%
- Price checked: 2026-11-13T05:41:42.898Z
- Rating: 4.3 / 5
- Reviews: 992

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Topical monthly application is described as a single dose applied directly to the skin.
- The listing claims flea feeding reduction can begin in as little as 5 minutes, with fleas killed within 4 hours.
- The product is claimed to repel mosquitoes as well as provide flea and tick prevention.
- The listing says the formula becomes waterproof after 24 hours.

## Pros

- Three tubes support a monthly routine across the listed three-month pack period.
- The listing describes quick-drying, non-greasy application and mosquito repellency in addition to flea and tick prevention.
- No prescription is required, according to the listing.

## Specifications

### Identity
- Brand: VECTRA 3D
- Model: D73814B
- Target dog size: Small
- Listed age range: 8 Weeks or Older
### Formula and format
- Form: Drops
- Active ingredients: Dinotefuran, Permethrin, Pyriproxyfen
- Scent: Unscented
- Volume: 0.16 fluid ounces
- Weight listed: 0.86 g
- Allergen information: Abalone Free
### Dimensions and installation
- Dimensions listed: 5.25 x 1 x 5.25 inches; 0.03 ounces
### Pack details
- Included components: 3 tubes
- Protection interval per application: Each topical application delivers up to one month of protection.

## Before you buy

- The listing targets dogs weighing 11–20 lb and gives an age range of 8 weeks or older. Confirm the correct weight range and suitability with a veterinarian before applying, especially if the dog has a history of skin reactions. The claimed waterproof interval is 24 hours after application.

## In the box

- 3 tubes (Included)

## A good fit for

- Owners seeking a topical monthly flea and tick treatment for dogs weighing 11–20 lb.
- Buyers who also want mosquito repellency and prefer a three-dose pack.

## Less suited to

- Dogs outside the listed 11–20 lb weight range.
- Owners seeking a treatment with consistently positive reported effectiveness or side-effect experiences, as customer feedback is mixed.

## Customer feedback

Customer feedback is mixed on effectiveness, value, side effects, and duration. Some customers report that it works and lasts as expected, while others say it does not work for their dogs or report irritation. These varied experiences matter for a monthly topical treatment, so weigh the possibility of inconsistent results and skin reactions against the listing's claimed dosing interval. Overall ratings lean positive, but they do not resolve those specific concerns.
- Mixed feedback: Customers report mixed effectiveness, with some saying it works well and others saying it does not work for their dogs.
- Mixed feedback: Opinions on value and duration vary.
- Mixed feedback: Feedback on side effects ranges from no reported issues to significant irritation.

## Frequently asked questions

### How many applications are included?
The listing specifies three tubes and describes each topical application as providing up to one month of protection.
### What weight range is this product listed for?
The product title specifies dogs weighing 11–20 lb. Use the weight range on the selected package and consult a veterinarian if unsure.
### How soon is it claimed to work against fleas?
The listing says flea feeding may be reduced in as little as 5 minutes and fleas are killed within 4 hours. These are manufacturer claims, not independently verified results.
### When does the listing say it is waterproof?
It claims the treatment is waterproof after 24 hours. Follow the package directions for application and water exposure.

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- [K9 Advantix II Flea & Tick Topical for Small Dogs 4–10 lbs., 6ct \| Vet-Recommended, 30-Day Protection, Treats & Prevents Fleas, Ticks, Mosquitoes, Biting Flies, and Lice](https://best-deals.pro/visit/vectra-3d-flea-tick-drops-dogs-11-20-lb)
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## Add-ons

- [Vectra 3D Flea and Tick Prevention for Large Dogs 56–95 lbs, 3‑Month \| Topical Flea Drops \| Kills and Repels Fleas, Ticks & Mosquitoes \| Fast‑Acting, Waterproof, No Prescription Needed](https://best-deals.pro/visit/vectra-3d-flea-tick-drops-dogs-11-20-lb)
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## Images

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 1](https://best-deals.pro/i/nOyyyBad05sarbc5eYvYBeLq35TLiTJv68vE3EB_ElOazP8rOeOiyuWujXKEDhxMNkjV_rnFkIl9GdFiwZKoIvs21PXRtpjQ8DRS8fL6htEzVCo93CR36TKe.jpg)

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 2](https://best-deals.pro/i/ozs0o-gJErUcm9S-jYjbl8tuT6WDWhKw2yhDpbIqnBZd8fns7KLsRTs7te5znteAYC2zwVP3FhO258PpXF4d2RmgXDt3pxXHo9j2UJiP9-1Ss11PKUQK99M9.jpg)

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 3](https://best-deals.pro/i/ROXx50jBLZhuKxHVqqTKCrHiE_eZfvFEFLTbemI4zONOL5uOll2R5-Z77pkYMFD-N1qtmGoPujKzYalosqhv7AksCZsJIUXwPrRRxE0Ifd_Ih3sD1S_C8CNZ.jpg)

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 4](https://best-deals.pro/i/revIbA4a0m36mY8MGuxV4f6e7_TcoYyisOV4o7i7Q__2iP8H8w0jUfbxuDoW4xsAPJ0HpoaJeTDOqfnVwt2y1V3Uy8Mp-OZsdYL9dP2BOBtKfoNV.jpg)

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 5](https://best-deals.pro/i/EyJEmDqR4i36gziGgKESpe-UGq2yVCiNbU3CPS7C1WbXlil4lofCXr3aKvNEiDr5fIPIeq7VPa7BIWoxeekPYewazPGNHaOTYmE_J6yb5sxt3gIs.jpg)

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 6](https://best-deals.pro/i/Jsq7eqMRt_TaHJajLkKdEVRCiLGpUvf9ZLZoIefvPzGLMVul2J6uPiKg_YwPHjWiSKOass42yYiO_PbTNkYV2mxA60HroPGkQ19CRor7ZE7Dn94U.jpg)

![VECTRA 3D Flea and Tick Drops for Dogs 11–20 lb, 3-Month Supply — 7](https://best-deals.pro/i/Vqj_pTVgm-xdYKQu3fDukx_t3Gvlk92QJEn3PX4B2a9Uf6gCiPSmWQ-MXQDuR2eckCprEKqdzpEcHAIUE7qpUFnRSyOa7jm2iCGSZynFSG4s7AQxecCUHxc1.jpg)