Ships from La Center, WA

We sell what we'd run on our own ponds.

Filters, medications, pumps, and the systems that hold them together — curated and stress-tested by a team that keeps show-grade koi every day. If it can't perform under real load, it never makes it onto this site.

[ Flagship ] · Quantum 8000 ★ Best Seller
Self-cleaning rotary drum filtration, sized for serious koi loads.
Capacity8,000 GPH · 10,000 Gal Pond
Filtration70 Micron Steel Screen
Cleaning Pump520W / Cycle
Water Use0.5 Gal / Cycle
Made InNetherlands

Vetted by prosRun in our own ponds first
Real expert supportAnswers from actual koi keepers
Honest counselWe'll tell you when to spend less

// Our Approach

Built by koi people, for koi people.

Most pond stores are run by people who don't keep koi. They sell what fits in a warehouse and ships cheap. Kenko works differently: we sell the equipment we use ourselves.

Every filter, every medication, every pump on this site has earned its place on our own systems — the ponds that hold koi worth more than a car. If a product doesn't deliver under real load, it doesn't stay in the catalog. The filtering is the whole product.

Shop by system.

Every piece you need to build a serious koi pond — organized by what it actually does, not where it sits on the shelf.

All Filtration Health Flow UV
Kenko Quantum RDF drum filter
Filtration · Featured

Quantum RDF Filter

Self-cleaning rotary drum filters built for serious koi loads. Our most-loved product line, and the first stage of every system we recommend.

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Kenko
Health

Medications

What we reach for when our own koi need help.

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Kenko
Flow

Pond Pumps

Efficient circulation, sized to your gallonage.

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W.Lim
Flow

UV Sterilizers

Green water solved at the molecular level.

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Kenko
Tools

Nets & Bowls

The supporting cast every pond needs.

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// Why Kenko

Three things every product here has to be.

[ 01 · Proven ]

Tested on our own systems

Every product in this catalog has spent time on the ponds holding our own show-grade koi. If it doesn't hold up under real load, it doesn't get listed. Specs alone don't earn shelf space.

[ 02 · Supported ]

Backed by people who keep koi

Questions get answered by a team that keeps koi for a living. Not a chatbot. Not a script. Real keepers who can tell you what you actually need.

[ 03 · Honest ]

Spec-truth, not sales fluff

We'll tell you when a $200 piece of equipment is the wrong call for your pond. We'll tell you when the cheaper option is better. The relationship matters more than the next transaction.

Most Loved

What koi keepers reach for.

The equipment our team reaches for first — proven on our own systems and trusted on yours.

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★ Best Seller Kenko Quantum 8000 RDF
Filtration

Kenko Quantum 8000 RDF

Self-cleaning rotary drum filter. 70 micron, 8,000 GPH, made in the Netherlands.

From $3,250View →
Pro Pick
Sterilization

W.Lim UV Sterilizer

Green water and algae solved at the molecular level. The sterilizer we run on our own ponds.

From $829View →
Essential
Health

Kenko Medications

Parasite and bacterial treatments. The brands we reach for when our own koi need them.

View collectionView →

// Brands We Stand Behind
W.LimKenkoAlitaHakkoRhino

// The Kenko Way

Build the pond your koi deserve.

Have a question about your build? Ask us — real koi keepers, honest answers, and the truth instead of a sales pitch.