
See the current low price, unit value, merchant options, and recent price history before you buy or set a drop alert.
Sentry Fiproguard · 22 lb bag at $0.82/lb, holding near its 90-day average.
Merchant rows include current price, subscription price where available, unit cost, and shipping notes.
Current best price is $0.11 below the 90-day avg. Chart starts at May 14 because that is the earliest observed point in this window. Recent range: $17.99 to $18.19.
Sorted by category match, unit-price proximity, pet type, and deal score so the comparison stays stable between visits.

Apex Plus · 22 lb bag at $0.79/lb, holding near its 90-day average.
Confirm pet type, weight range, age guidance, treatment duration, and active format before price.

K9 Advantix · 20 lb bag at $0.75/lb, holding near its 90-day average.

Vectra 3D · 95 lb bag at $0.95/lb, 16% above its 90-day average.

PetArmor for · 22 lb bag at $0.68/lb, holding near its 90-day average.

FRONTLINE · 80 lb bag at $0.66/lb, 20% above its 90-day average.

K9 Advantix · 55 lb bag at $0.65/lb, holding near its 90-day average.