SAVE 20% on regular-priced items online with code: PETS20 thru 5/3* >

  • $0 - $50+

    $0$25$50+

Bayer

(11 results)
K9 Advantix® II Extra Large Dog Once-A-Month Topical Flea & Tick Treatment for Dogs Over 25 kg
3 sizes

K9 Advantix® II Extra Large Dog Once-A-Month Topical Flea & Tick Treatment for Dogs Over 25 kg

(29)
$65.99 - $161.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
K9 Advantix® II Medium Dog Once-A-Month Topical Flea & Tick Treatment for Dogs 4.6 to 11 kg
3 sizes

K9 Advantix® II Medium Dog Once-A-Month Topical Flea & Tick Treatment for Dogs 4.6 to 11 kg

(21)
$59.99 - $142.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Large Cat Once-A-Month Topical Flea Treatment - Over 4 kg
3 sizes

Advantage® II Large Cat Once-A-Month Topical Flea Treatment - Over 4 kg

(108)
$46.99 - $112.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
K9 Advantix® II Large Dog Once-A-Month Topical Flea & Tick Treatment for Dogs 11 to 25 kg
3 sizes

K9 Advantix® II Large Dog Once-A-Month Topical Flea & Tick Treatment for Dogs 11 to 25 kg

(26)
$65.99 - $161.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Small Cat Once-A-Month Topical Flea Treatment for Cats 2.3 to 4 kg
3 sizes

Advantage® II Small Cat Once-A-Month Topical Flea Treatment for Cats 2.3 to 4 kg

(28)
$46.99 - $112.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
K9 Advantix® II Small Dog Once-A-Month Topical Flea & Tick Treatment for Dogs Under 4.5 kg
3 sizes

K9 Advantix® II Small Dog Once-A-Month Topical Flea & Tick Treatment for Dogs Under 4.5 kg

(12)
$59.99 - $142.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Extra Large Dog Once-A-Month Topical Flea Treatment - Over 25 kg
3 sizes

Advantage® II Extra Large Dog Once-A-Month Topical Flea Treatment - Over 25 kg

(8)
$51.99 - $127.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Large Dog Once-A-Month Topical Flea Treatment - 11 to 25 kg
3 sizes

Advantage® II Large Dog Once-A-Month Topical Flea Treatment - 11 to 25 kg

(6)
$51.99 - $127.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Medium Dog Once-A-Month Topical Flea Treatment - 4.6 to 11 kg
3 sizes

Advantage® II Medium Dog Once-A-Month Topical Flea Treatment - 4.6 to 11 kg

(16)
$46.99 - $112.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Once-A-Month Topical Flea Treatment for Dogs Under 4.5 kg
3 sizes

Advantage® II Once-A-Month Topical Flea Treatment for Dogs Under 4.5 kg

(4)
$46.99 - $112.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Advantage® II Kitten Once-A-Month Topical Flea Treatment - Under 2.3 kg
2 sizes

Advantage® II Kitten Once-A-Month Topical Flea Treatment - Under 2.3 kg

(20)
$41.99 - $68.99
Save 20% on regular price items online only w/code PETS20 thru 5/3, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
  1. 1
Download on the App StoreDownload on the Google Play Store
Copyright © 2026 PetSmart LLC
RecallsTerms of Use Privacy Policy Interest-Based Ads Canada Modern Slavery Act
*See Promotional Terms Page for details. Exclusions may apply. While supplies last. Prices & selection may vary by store & online.