
K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply
The K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply ... Read full analysis & FAQs ↓
Record Lowest Price Tracked ($19.97)
PetPriceWatch has monitored this SKU across 180 days: this is the lowest price ever recorded. A prime buying window before the price rebounds.
On the struck-through price. We only strike a former price when it is the merchant's own recent list price for this exact SKU. A 90-day average is shown as a labelled comparison instead — never as a crossed-out price. Federal pricing rules (FTC 16 CFR § 233.1) treat a struck price as a claim that it was genuinely offered at that amount.
Best buying options
Merchant rows include current price, subscription price where available, unit cost, and shipping notes.
90-day price movement
Current best price matches the 90-day avg. Chart starts at Jul 20 because that is the earliest observed point in this window. Recent range: $19.97 to $19.97.
Last observed 2026-09-22 05:00 UTC. Every point on this chart is a reading we actually recorded. We do not append a marker dated “today” to close the gap when our last check is old — that would put a date on a price we never saw. If the chart stops short of today, that gap is the honest answer.
Check label fit before buying
Confirm pet type, weight range, age guidance, treatment duration, and active format before price.
Favorable unit cost: $19.97/null beats the market average ($22.97/null) by 13%.
calculateCalculate S&S Autoship Savings →K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply In-Depth Value Review
The K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply is currently available at $19.97, aligning closely with its 90-day baseline average of $19.97. At $19.97 / null, the product maintains a stable cost-per-use profile. While there is no immediate flash discount active today, K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply remains a benchmark choice in the Flea & Tick market known for consistent formulation quality, batch reliability, and high pet acceptance.
Key Advantages
- Competitive unit economics: priced at $19.97 / null in the Flea & Tick segment.
- Reputable brand pedigree: K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply provides transparent ingredient sourcing and quality control.
- Consistent price stability: avoids wild inflationary spikes common in specialized pet care products.
- Subscription eligible: supports automated recurring delivery discounts up to 15% on major merchant platforms.
Things to Consider
- Package size considerations: the 0 null volume requires airtight, dry storage to preserve freshness.
- Promotional volatility: prices frequently rebalance when manufacturer coupons expire; monitoring alerts is advised for bulk buyers.
petsPet Compatibility & Feeding Profile
Topical / oral preventive administration: apply once every 30 days. Do not split doses across different pet weight ranges.
Frequently Asked Questions about K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply
Is $19.97 a good price for K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply?
At $19.97, this item is currently priced at its standard historical market baseline ($19.97). It offers reliable everyday value, though bargain hunters may wish to set a price alert for the next promotional markdown.
What is the unit cost of K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply?
The normalized unit cost for this 0 null package is $19.97 / null. Tracking cost per unit allows pet parents to accurately compare value across different bag sizes, multi-packs, and competing brands.
How can I save more money on K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply Flea & Tick?
To maximize savings, look for Amazon Subscribe & Save options to unlock 5% to 15% off, compare multi-pack unit costs, and utilize PetPriceWatch to track historical price floors so you buy during promotional dips rather than at peak retail.
Who is this K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21-55 lbs. | 1-Mo Supply product best suited for?
This product is formulated for dogs (All Life Stages). It is well suited for pet owners seeking dependable flea & tick from a recognized brand with verified consumer ratings.
Related Expert Guides & Resources
Comparing Flea & Tick Medications: Dosage and Costs
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Buying GuideThe PetMetric Guide to Comparing Unit Costs and Never Overpaying
Discover how smart pet owners use unit cost comparison and price history tracking to cut their pet supply bills.
Worth comparing before checkout
Sorted by category match, unit-price proximity, pet life stage, and deal score so the comparison stays stable between visits.

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