316 is an exceptional stainless steel, but “more expensive” doesn’t automatically mean “better for every job.”

316 contains molybdenum, which gives it additional resistance to certain types of corrosion, particularly in harsh chloride-rich environments. That makes it an excellent choice for marine equipment, chemical processing, and other demanding applications.

Your cat’s litter box is not a boat.

Premium 304 / 18-8 stainless steel already provides excellent corrosion resistance, a non-porous surface, outstanding cleanability, and long-term durability for indoor use. We could have made the Halo from 316. We chose 304 because the additional cost and corrosion protection of 316 simply aren’t necessary to make a better litter box.

Because “stainless steel” doesn’t tell you the whole story.

201 is an economy stainless steel that substitutes some of the nickel found in 304 with less expensive alloying elements. It can be perfectly suitable for many products, but it offers lower corrosion resistance than premium 304.

A litter box deals with urine, moisture, repeated cleaning, and daily use. This was not the place we wanted to save a few dollars on material.

Halo is made from genuine 304 / 18-8 stainless steel, approximately 18% chromium and 8% nickel, because we wanted the corrosion resistance, durability, cleanability, and quality associated with a material trusted in demanding food and kitchen environments.

Cat Essentials. Human Standards. This is exactly what we mean by it.

Because it's used everywhere quality, cleanliness, and durability matter.

304 is one of the most widely used stainless steels in the world and is commonly found in commercial kitchens, food-processing equipment, cookware, sinks, appliances, tanks, and other hygienic applications.

That matters to us. If a material is trusted day after day around the food humans prepare and eat, we feel pretty good about trusting it with cat pee.

It’s also why we call the Halo human-grade. We didn’t invent a fancy name for our steel. We chose a premium material with a long track record in demanding human environments.

Because “stainless steel” describes a family of materials, not a single grade or quality level.

Many lower-priced litter boxes are made from 201 stainless steel or don't disclose the steel grade at all. 201 contains less nickel than 304 and is less expensive to manufacture, but it also offers lower corrosion resistance.

Huckwell Halo is made from genuine 304 / 18-8 stainless steel, the premium grade widely trusted in commercial kitchens, food equipment, and other demanding applications.

Two boxes can look almost identical online and be made from very different materials. The difference often doesn't show up on day one. It shows up after months and years of urine, moisture, cleaning, and daily use.

We built Halo for the years, not the unboxing.

Terms like “stainless steel,” “premium stainless,” and even “high-quality stainless” don't tell you which alloy you're actually buying.

Look specifically for 304, 18/8, or UNS S30400 and be cautious when a manufacturer doesn't disclose the grade at all.

Huckwell tells you exactly what you're buying: 304 / 18-8 stainless steel. No mystery metal.

304 is one of the world's most trusted stainless steels because it combines excellent corrosion resistance, durability, cleanability, and a non-porous surface.

It's widely used in commercial kitchens, food-processing equipment, cookware, sinks, appliances, and other hygienic applications where material quality matters.

If a material is trusted day after day around the food humans prepare and eat, we feel pretty good about trusting it with cat pee.

That's what we mean by Cat Essentials. Human Standards.

The problem with plastic isn't just what happens when it's new. It's what happens after hundreds of claws, scoops, cleanings, and trips to the litter box.

Plastic scratches. Those scratches and surface imperfections can trap microscopic residue and make odors and bacteria more difficult to remove completely.

304 stainless steel provides a hard, smooth, non-porous surface that doesn't absorb urine or odors and is exceptionally easy to clean.

No. 304 stainless steel itself is non-porous, so urine and odors aren't absorbed into the material.

That's a major reason we chose it. Instead of trying to deodorize a material that has absorbed years of litter-box use, you're cleaning a durable stainless surface.

Yes. 304-grade stainless steel is food-grade and non-toxic: the same standard used in pet food bowls, surgical tools, and commercial kitchen equipment. Unlike plastic, it contains no BPA, microplastics, or chemical coatings that can leach over time.

304-grade stainless steel is highly corrosion resistant and will not rust under normal household conditions. Lower grades like 201-grade steel can rust within 1–2 years, especially when exposed to ammonia in cat urine. Huckwell uses only 304-grade for this reason.

Cat urine contains high levels of ammonia which is corrosive over time. 201-grade steel degrades under repeated ammonia exposure, becoming porous and odor-absorbing: the same problem as plastic, just slower. 304-grade resists ammonia, maintaining a non-porous surface for the lifetime of the box.

Over time, yes significantly. A plastic litter box typically needs replacing every 1–2 years as it scratches, stains, and absorbs odor permanently. The Halo is built to last a decade or more , replacing 5–10 plastic boxes over its lifetime. The cost per year is actually lower than cycling through cheap plastic alternatives.