USM Haller Spare Parts Guide: Buy Individual Connectors, Tubes & Panels
Cracked panel, lost connector, or an extension by one bay — none of it needs a whole new USM Haller unit. See what ball connectors, tubes, and panels you can buy individually at Klackjoy, factory-direct and roughly 60-70% cheaper than new genuine USM.

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USM Haller Spare Parts Guide: Buy Individual Connectors, Tubes & Panels
A cracked panel. A missing ball connector after a move. A shelf you want to extend by just one bay. None of these problems need a whole new USM Haller unit — they need one part, correctly sized, delivered without a three-week wait. This guide walks through what you can actually buy piece by piece, why it's usually the smarter fix, and how to make sure the part you order fits the piece you already own.
The problem with sourcing USM Haller spare parts
USM Haller is built to last — that's the whole point of a system held together by ball connectors and tubes instead of glue and particleboard. But "built to last" doesn't mean "easy to repair." If you own a USM Haller piece and one part fails, gets lost during a move, or you simply want to stretch an existing sideboard by one more bay, you run into the same wall most owners eventually hit: buying a single component is harder than it should be.
Official USM spare parts exist, but the retail experience is built around full units and authorized dealers, not walk-up single-part orders. Pricing for genuine components reflects USM's premium positioning, and depending on your region, getting a quote for "just one tube" or "just one ball connector" can mean a dealer inquiry and a wait, rather than an add-to-cart button.
The secondhand market is the other common workaround, and it comes with its own risk. Marketplace listings for loose USM connectors and tubes are inconsistent on condition, finish, and — critically — exact dimensions. A tube that's a few millimeters off, or a connector with a mismatched thread, won't just look wrong; it can compromise how securely a shelf locks together. Buying blind from a stranger's parts bin is a gamble most people would rather not take on a piece of furniture they're trusting with books, dishes, or a television.
That gap — expensive-and-slow on one side, cheap-but-risky on the other — is exactly what a factory-direct, physically compatible spares source is supposed to close.
What you can buy individually at Klackjoy
Klackjoy sells USM Haller-compatible components as individual line items, not just as complete configured units. The same three building blocks that make up every Klackjoy piece — connectors, tubes, and panels — are each available on their own.
25mm ball connectors
The connector is the small but essential part most owners eventually need to replace. Klackjoy's ball connectors are 25mm chrome-plated brass balls with M8 threading, matching the connector geometry USM Haller has used throughout the system's history. Order as many as you need — one to fix a single joint, or a full set if you're building out a new section.
Tubes in every standard length
Klackjoy stocks tubes in all nine standard USM Haller lengths: 100, 150, 175, 250, 350, 395, 500, 595, and 750mm — the same set of nominal sizes used on all three axes (width, height, depth). The tubes themselves are stainless steel, matching the structural material of the original system. Whether you're replacing one bent tube or adding a single row to extend a unit's height, you order the exact length you need rather than a bundled set.
Panels — with true per-panel color and material choice
Panels are where single-part ordering matters most, because a panel replacement almost always needs to match — or intentionally contrast with — everything else already on the piece. Every individual panel, door, or drawer front in Klackjoy's catalog carries its own color and material selection, independent of any other panel on the unit. That means you can order one replacement panel in the exact finish you need without touching the rest of the configuration.
Material options include:
- Metal panels — 16 colors, including nine finished in officially confirmed RAL powder-coat shades: Pure White (RAL 9010), Light Grey (RAL 7035), Mid Grey (RAL 7005), Anthracite (RAL 7016), Graphite Black (RAL 9011), Golden Yellow (RAL 1004), Pure Orange (RAL 2004), Steel Blue (RAL 5011), and Gentian Blue (RAL 5010), plus two metallic finishes (brass and brushed aluminum). Four additional metal colors — Ruby Red, Green, Beige, and Brown — are proprietary shades identified by name and hex code rather than an official RAL number.
- Microfiber leather panels — 19 colors of microfiber (superfine/PU composite) leather, not genuine hide.
- Wood panels — Black Oak, currently the sole wood finish offered.
- Glass panels — Clear or Frosted.
One clarification worth making up front: the stainless steel used in Klackjoy's tubes is a structural material, not a selectable panel surface — there is no "stainless steel" panel finish. If you're replacing a metal panel, you're choosing among the powder-coat and metallic colors listed above.
Why buying single parts makes sense
Repairing or extending with individual parts isn't just more convenient than replacing a whole unit — it's meaningfully cheaper. Klackjoy sources components factory-direct and sells USM Haller-compatible parts at roughly 60-70% below the cost of new genuine USM, so a single replacement panel or a handful of connectors costs a fraction of what a comparable full-unit purchase would. For a repair, that's the difference between fixing a $600 sideboard for the price of one panel versus pricing out a full replacement. For an extension, it means you can add exactly one bay, one shelf, or one door — instead of buying a whole new module because that's the smallest unit on offer.
It also fits how USM Haller pieces actually get used over time. These are modular systems precisely because people's storage needs change: a family grows, a home office gets added, a media cabinet needs one more drawer. Being able to order the three or four parts that specific change requires — rather than reconfiguring or replacing the whole piece — is the entire logic of modular furniture, applied down to the individual component.
How to determine the right size and color
Getting a spare part to fit and match starts with two measurements you can take yourself.
For tubes and connectors, measure the existing tube length in your unit rather than guessing from memory — USM Haller's nominal sizes (100 through 750mm) refer to center-to-center distance, so measure connector-center to connector-center on the piece you're matching, then order the corresponding standard length. Ball connectors don't vary by size — every USM Haller connector is the same 25mm diameter — so fit is really a question of thread condition rather than sizing.
For panels, color matching is the trickier part, especially on an older piece that's seen a few years of light fading. If your unit uses one of the nine RAL-coded colors listed above, that RAL number is the most reliable way to specify an exact match — it's a standardized reference, not a marketing name. For the four proprietary colors (Ruby Red, Green, Beige, Brown), match by name and, ideally, by comparing directly against a swatch or photo of the existing panel, since there's no external RAL code to cross-reference.
If you can't find a confident match in the standard catalog — an older custom color, a discontinued shade, or something you're simply unsure about — Klackjoy offers a manual path for bespoke color requests. Reach out to our team by email (support@klackjoy.com) or WhatsApp with details or a photo of what you're matching, and we'll evaluate the request and can add a new color to the catalog once approved. This isn't an instant, self-serve picker inside the configurator; it's a real evaluation step, and turnaround depends on the request. But it means an unusual or older color isn't automatically a dead end.
A note on connector compatibility with older or secondhand USM pieces
USM Haller has been in continuous production for decades, and if you're sourcing a replacement connector for a vintage or well-worn secondhand piece, it's worth a small amount of extra care before you order. Connector geometry has stayed remarkably consistent across USM's production history, which is part of why the system has such a strong reputation for long-term serviceability — but wear, older finishes, and pieces that have changed hands multiple times can make an exact fit less certain to eyeball from a listing photo alone.
If you're not fully sure your existing piece is a standard-generation fit — particularly with an older or heavily used secondhand find — the safest move is a quick check before ordering: measure the ball diameter (should read 25mm) and take a close photo of a connector and the adjoining tube ends. If anything looks off, send it to our team via email or WhatsApp before you order rather than after. It's a five-minute step that avoids the hassle of a return.
Get the parts you actually need
You don't need a new USM Haller piece to fix or extend the one you have. Klackjoy sells the same three components — 25mm chrome-plated brass ball connectors, stainless steel tubes in all nine standard lengths, and individually colored panels — as single-item orders, factory-direct and at roughly 60-70% less than new genuine USM. Measure what you need, match the color against the catalog (or reach out for a bespoke match), and order exactly the part that's missing — not a whole new unit around it.
Browse individual parts in the Klackjoy shop, or contact our team directly at support@klackjoy.com or via WhatsApp if you're not sure which size or color fits your existing piece.
Frequently Asked Questions
Can I order just one part instead of a full set?
Yes. Klackjoy sells ball connectors, tubes, and panels as individual line items — you can order a single 25mm connector, one tube in any of the nine standard lengths (100, 150, 175, 250, 350, 395, 500, 595, 750mm), or one replacement panel in its own color and material, without buying a complete unit or a bundled set around it.
Will these parts fit my existing USM Haller?
Klackjoy's connectors, tubes, and panels are physically compatible with genuine USM Haller, so they can be mixed with pieces you already own. Ball connectors are 25mm chrome-plated brass with M8 threading, and tubes use the same nine standard nominal lengths across all three axes. For older or secondhand pieces, we recommend confirming exact tube length by measuring center-to-center on your existing unit, and checking connector condition before ordering — if you're at all unsure, send us a photo via email or WhatsApp and we'll help confirm fit before you order.
How much cheaper are Klackjoy spare parts?
Klackjoy sources components factory-direct and prices USM Haller-compatible parts roughly 60-70% below the cost of new genuine USM, so a single replacement panel, tube, or connector — or a small set of them for a repair or extension — costs a fraction of what an equivalent full-unit purchase from USM would.
What panel colors and materials are available for spare parts?
Replacement panels come in four materials: metal (16 colors — a mix of officially confirmed RAL powder-coat shades, two metallic finishes, and four proprietary shades identified by name and hex code), microfiber leather (19 colors), wood (Black Oak, the only wood finish currently offered), and glass (Clear or Frosted).
What if I can't find my exact color, or need a bespoke match?
If you can't find a confident match in the standard catalog — an older custom color, a discontinued shade, or something you're simply unsure about — Klackjoy offers a manual path for bespoke color requests. Reach out to our team by email (support@klackjoy.com) or WhatsApp with details or a photo of what you're matching, and we'll evaluate the request and can add a new color to the catalog once approved. This isn't an instant, self-serve picker inside the configurator; it's a real evaluation step, and turnaround depends on the request. But it means an unusual or older color isn't automatically a dead end.
Shop the Klackjoy modular system
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Ready to design your own?
Use our free 3D configurator to build a USM-compatible modular unit — choose size, color, and panels.
Design your own USM-compatible unit

