FRESH STEP™Heavy Duty Odor Block Scented Cat Litter
3x odor-fighting carbon with Ammonia Block Technology.*
Meet your heavyweight odor-fighting champion. Fresh Step Heavy Duty Odor Block Scented Cat Litter offers 3x odor fighting carbon with Ammonia Block Technology,* which fights odor 3x as long† as the leading clumping litter brand. The longest lasting odor control from Fresh Step,‡ and the only litter brand backed by the power of Febreze, this heavy duty cat litter helps keep your litter box smelling fresh for 30 days. Made with natural clay enhanced with odor fighting power, this low-dust formula helps ensure clean surfaces and a pleasant experience for both you and your cat. This clay litter forms strong clumps for easy cleanouts. Strong enough for multi-cat households, one box of this clay clumping cat litter lasts about one month per cat based on average purchase cycles. This litter is compatible with automatic litter boxes and features a less-residue formula for a clean cycle.
Available Sizes: 22 Lbs, 38 Lbs, 42 Lbs
* vs. Fresh Step Odor Shield.
† On fecal malodor.
‡ Among Fresh Step clumping litters.
§ Original receipt/UPC required, submit refund request within 60 days of purchase. Satisfaction Guaranteed Terms.
Highlights
3X Odor-Eliminating Carbon*
30-Day Odor Control Guaranteed§
Fights Ammonia Odors Before They Start
Cat-Approved Fragrance
Heavy Duty Litter
Get 3x odor fighting carbon with Ammonia Block Technology* in this heavy duty cat litter, which fights odor 3x longer† than the leading clumping litter brand.
With Odor-Eliminating Carbon
Fresh Step litter combines naturally strong clay with carbon, Ammonia Block Technology and Febreze freshness.
High-Quality Clumping
This clumping cat litter is made with high-quality clay for strong clumps and easy cleanup, all in a low-dust formula that makes for a pleasant experience for you and your cat.
Paw-Activated Freshness
Smart, science-backed innovations like paw-activated freshness deliver a proactive, superior litter experience that works the moment your cat steps in.
Multi-Cat Formula
Strong enough even for multi-cat households, this Fresh Step Heavy Duty Odor Block Scented Cat Litter delivers 30 days of odor control.
1 Fill
Fill your clean litter box with 3–4 inches of Fresh Step litter. Pour litter no more than a few inches from the box OR keep the carton close to the box when pouring litter.
2 Remove
Litter quickly forms a clump around liquid waste. Remove clumps and solids daily, and dispose of in trash. Do not flush.
3 Add
Add more Fresh Step clumping cat litter to refresh your litter box. Maintain level of litter at 3–4 inches.
Tough on odors. Easy on you.
Even your cat’s impressed: Fresh Step litter brings you the latest in odor control technology.
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Say hello to the new and improved Fresh Step.
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We share your love of cats.
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That's why we go to extreme lengths in our laboratories for your litter,
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and why we obsess over state of the art technology like paw activated odor control.
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We supercharge 4 million particles in each
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box with odor absorbing activated charcoal.
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Why activated charcoal?
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Charcoal traps odor particles like a sponge to keep your home fresh,
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and thanks to our low dust formulas,
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it will stay fresh.
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We've also upped our clumping game by absorbing liquid
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and odor on contact to form tight clumps,
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because clumps that actually stay together means you enjoy easier cleanup.
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Trouble deciding?
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Let's choose your odor fighter.
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You'll never go wrong with our core products.
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Try OdorShield for 15-day odor control,
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Extreme Clump for tight clumps and easy scooping.
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For specialty preferences,
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try heavy duty,
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our strongest odor control formula.
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Clean paws for low tracking.
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Scented and unscented options,
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or Ere for a litter that absorbs more moisture for fewer box changeouts.
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Got convenience on your mind?
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Check out our easy to pour,
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easy to store 4 pack,
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or powerful odor control in our lightweight formula.
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So whatever your need is,
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we have a product that offers a solution,
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tested in our lab,
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approved by your cat,
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unnoticed by your guests.
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Fresh stuff,
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is it crazy or is it love?
Cat Care
Everything you wanted to know about Felis catus (that's Latin for kitty).
Product FAQs
Fresh Step™ Heavy Duty Odor Block is our strongest odor-fighting formula yet, designed for multi-cat households. It delivers 30 days of odor control with 3X odor-eliminating carbon,* Ammonia Block Technology, and Febreze freshness.
*vs. Fresh Step Odor Shield
This litter combines 3X odor-eliminating carbon* with Ammonia Block Technology to neutralize tough odors on contact. It’s engineered for round-the-clock freshness for up to 30 days.
*vs. Fresh Step Odor Shield
It provides 30 days of guaranteed odor control, making it ideal for multi-cat homes and busy households.
It’s our longest-lasting odor control formula, featuring 3X odor-eliminating carbon* and paw-activated Febreze freshness for superior performance.
*vs. Fresh Step Odor Shield
Yes. It’s enhanced with Febreze freshness, providing a clean, pleasant scent that’s safe for cats and helps keep your home smelling fresh.
Absolutely. This formula is strong enough for multi-cat homes, offering powerful odor control and tight clumps for easy scooping.
Fill your litter box with 3–4 inches of litter. Scoop clumps and solids daily, and dispose of in the trash. Do not flush. Add fresh litter as needed to maintain the proper level.
Yes; Fresh Step clay clumping litters are compatible with automatic litter boxes.
It’s available in 22 lb and 38 lb cartons, designed to last about one month per cat based on average usage.
• 3X odor-eliminating carbon vs. Fresh Step Odor Shield
• 30-day odor control guarantee
• Ammonia Block Technology
• Paw-activated Febreze freshness
• Strong clumps for easy scooping
• Low-dust formula for cleaner surfaces
Every time your cat steps into the litter box, paw-activated technology releases a burst of Febreze freshness, helping maintain a clean-smelling environment.
Yes! It uses Ammonia Block Technology to neutralize tough ammonia odors before they start, keeping your litter box fresh longer.
Mix Heavy Duty Odor Block with your current litter for a few days, gradually increasing the ratio until you’re using only Heavy Duty. This helps your cat adjust to the new texture and scent.
Yes. Heavy Duty Odor Block is formulated with a low-dust blend to help keep your home cleaner and reduce airborne particles during pouring and scooping.