Contrac All-Weather Blox Rodenticide City Packs (16 x 1 lb. pouches)

Contrac All-Weather Blox Rodenticide City Packs (16 x 1 lb. pouches)
Contrac All-Weather Blox Rodenticide City Packs (16 x 1 lb. pouches)
Contrac All-Weather Blox Rodenticide City Packs (16 x 1 lb. pouches)
Contrac All-Weather Blox Rodenticide City Packs (16 x 1 lb. pouches)

Buy 2 or more: $133.15 each

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Product Overview

Contrac All-Weather Blox City Packs is a specially formulated anticoagulant rodenticide that helps control and eliminate rats and mice. It contains Bromadiolone as its active ingredient with a special blend of food-grade ingredients and a minimal amount of paraffin. It will effectively kill those pesky rodents, including warfarin-resistant Norway rats and meadow voles. Its highly palatable formula is time-tested and proven effective against commensal and non-commensal rodent species so it makes a great maintenance and clean-out bait. It also features a weatherable formulation so it works in dry or wet conditions. It comes with multiple edges which is appealing to rats because of their love to nibble. The center of the blox has a hole to allow technicians to secure baits on tamper-resistant bait stations, nails, or wires with ease. Each blox weighs 28 grams and will work with most bait stations, in tight places, or can be nailed to ceilings or rafters.

Each order is a case of 16 x 1 lb. Pouches.

Note: Due to California state restrictions, this product cannot be sold to California residents.

Features and Specs

Active Ingredient Bromadiolone 0.005%
Target pests Rats, Mice, Warfarin-resistant Norway rats, Peromyscus,Cotton Rat, Deer Mouse, House Mouse, Meadow Mouse Or Voles, Old World Rats and Mice, Roof Rat, and Wood rat
For use in Gnawed openings, in corners and concealed places, between floors and walls. Exterior non-landscaped settings, nurseries and greenhouses, structures and immediate surroundings
Formulation Professional Product
Dimensions 1 3/4 in. x 1 in. x 1 in. per Blox (28 grams)
Color Green
Special Features Highly palatable, yet weatherable, CONTRAC works well in wet and dry conditions
A hole in the center of the Blox lets technicians place it on bait securing rods in tamper-resistant bait stations, or nail or wire the Blox in place
Shipping Weight 18.40 lbs
Manufacturer Bell Labs (Mfg. Number: CB1616)
EPA Registration 12455-79



  • Highly palatable, yet weatherable, CONTRAC works well in wet and dry conditions.
  • Multiple edges that appeal to a rodent's desire to gnaw.
  • Bait shyness is not a problem with CONTRAC because mortality occurs a few days after bait is consumed.
  • The antidote, Vitamin K1, is readily available.


IMPORTANT: Do not expose children, pets, or nontarget animals to rodenticides. To help to prevent exposure:

  1. Store unused product out of reach of children and pets.
  2. Apply bait in locations out of reach of children, pets, domestic animals and nontarget wildlife, or in tamper-resistant bait stations. These stations must be resistant to destruction by dogs and by children under six years of age, and must be used in a manner that prevents such children from reaching into bait compartments and obtaining bait. If bait can be shaken from bait stations when they are lifted, units must be secured or otherwise immobilized. Stronger bait stations are needed in areas open to hoofed livestock, raccoons, bears, or other potentially destructive animals, or in areas prone to vandalism.
  3. Dispose of product container and unused, spoiled, or unconsumed bait as specified on this label.

Bait stations are mandatory for outdoor, above-ground use. Tamper-resistant bait stations must be used wherever children, pets, non-target mammals, or birds may have access to the bait placement location.


This may only be used to control the following rodent pests in and around man-made structures: House mouse (Mus musculus), Norway rat (Rattus norvegicus), Roof rat (Rattus rattus), Cotton mouse (Peromyscus gossypinus), Cotton rat* (Sigmodon hispidus), Deer mouse (Peromysus maniculatus), Eastern harvest mouse* (Reithrodontomys humuli), Golden mouse* (Ochrotomys nuttalli), Polynesian rat* (Rattus exulans), Meadow vole* (Microtus pennsylvanicus), White-footed mouse (Peromyscus leucopus), White-throated woodrat* (Neotoma albigula), Southern plains woodrat* (Neotoma micropus), and Mexican woodrat* (Neotoma mexicana). This must be used in and within 100 feet of man-made structures constructed in a manner so as to be vulnerable to commensal rodent invasions and/or to harboring or attracting rodent infestations. Examples of such structures include homes and other permanent or temporary residences, food processing facilities, industrial and commercial buildings, trash receptacles, agricultural and public buildings, transport vehicles (ships, trains, aircraft), docks and port or terminal buildings and related structures around and associated with these sites. Fence and perimeter baiting, beyond 100 feet from a structure as defined above, is prohibited. This must not be applied directly to food or feed crops.

Burrow baiting with Contrac All-Weather Blox is prohibited.

Do not place near or inside ventilation duct openings. Do not contaminate water, food, feedstuffs, food or feed handling equipment, or milk or meat handling equipment or surfaces that come into direct contact with food. When used in USDA inspected facilities, this must be applied in tamper-resistant bait stations. Do not broadcast bait. Do not use this in sewers.


Determine areas where rats, mice, or meadow voles* will most likely find and consume the bait. Generally, these areas are along walls, by gnawed openings, in corners and concealed places, between floors and walls, or in locations where rats, mice, or meadow voles*, or their signs have been seen. Protect bait from rain and snow. Remove as much alternative food as possible.


  • RATS: Place 3 to 16 bait blocks (at intervals of 15 to 30 feet) per placement in infested areas. Maintain an uninterrupted supply of fresh bait for at least 10 days or until signs of rat activity cease.
  • MICE AND MEADOW VOLES*: Place 1 block per placement. Space placements at 8- to 12-foot intervals in infested areas. Two blocks may be needed at points of very high activity. Maintain an uninterrupted supply of fresh bait for at least 15 days or until signs of mouse or meadow vole* activity cease.
  • FOLLOW-UP: Replace contaminated or spoiled bait immediately. Wearing gloves, collect and dispose of all dead, exposed animals and leftover bait. To prevent reinfestation, limit sources of rodent food, water, and harborage as much as possible. If reinfestation does occur, repeat treatment. Where a continuous source of infestation is present, establish permanent bait stations and replenish as needed.

* Not permitted for use against the following species in California: Cotton rat, Eastern harvest mouse, Golden mouse, Polynesian rat, Meadow vole, White-throated woodrat, Southern plains woodrat, and Mexican woodrat.

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Questions & Answers

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Do you sell individual packs of the Contrac All-Weather Blox City Packs?

I just want to buy 1 or 2 lbs. of bloxs.


Unfortunately, rodenticides such as

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