Specifications
| Model number | PU550 |
|---|---|
| Chair type | Low-level lab stool |
| Seat dimensions | 450 mm wide |
| Overall height | 485–620 mm |
| Seat height adjustment | 400–530 mm |
| Base dimensions | 620 × 620 mm |
| Weight capacity | 20 stone / 127 kg |
| Gas lift | 20-stone-rated gas strut |
| Seat material | Moulded polyurethane (wipe-clean, chemical-resistant) |
| Base options | Standard castors as standard; lock on/off castors incur a price uplift |
| Mechanism | Single-lever seat-height adjustment |
| Guarantee | 5 years (2 years in shift / 24-7 use) |
| Delivery | UK mainland included. Scottish Highlands & Northern Ireland on request. |
Description
The PU550 is a desk-height polyurethane lab stool — a compact, wipe-clean seat for seated benches around 720–750 mm, built for busy shared labs. Purchased over 1,207 times to date.
For standing benches around 900 mm, specify the bench-height PU552; where more seat comfort is wanted, see the upholstered OF510. The lab chair height guide confirms the fit.
Seat
A moulded polyurethane seat — solid, seam-free and wipe-clean. It tolerates routine laboratory cleaning agents and shrugs off knocks, spills and daily wash-down, which is why PU is the default choice for busy shared benches.
Feet or castors
Feet and castor options are selectable above. Castors carry a price uplift — soft-tyre castors are recommended for hard or vinyl flooring, and lock-off or lock-down castors hold the chair in position where it must not move.
Who buys from us
The PU stool range is on teaching and research benches at Imperial College London, the University of Sheffield, University College London and Tate & Lyle Sugars.
Ordering
Purchase orders accepted, VAT invoice supplied. Volume pricing from 4 units. Delivery included to mainland Britain. UK support and spares available — we have been supplying laboratory and technical seating since 1986.
Frequently Asked Questions
- What bench height does the PU550 suit?
- The PU550 is a low-height stool. Its seat adjusts from 400mm to 530mm, which suits seated / desk-height benches around 750 mm high. If you’re not sure, send us your bench height and we’ll confirm the right model.
- What is the weight capacity of the PU550?
- The PU550 is fitted with a 20-stone gas strut, which is approximately 127 kg.
- Is the PU550 easy to clean and suitable for busy labs?
- Yes. The PU550 has a moulded polyurethane seat that wipes clean and resists chemicals, spills and frequent cleaning, so it suits teaching labs, healthcare areas, industrial settings and other high-use, easy-clean environments. For static-sensitive areas see our ESD range; for classified cleanrooms see our cleanroom range.
- Can I have feet or castors on the PU550?
- The PU550 comes with standard castors as standard. Lock on/off castors are available for a price uplift. Soft-tyre castors are recommended for hard or vinyl flooring; please also consider the safety requirements of your working environment when choosing castors.
- What guarantee and delivery apply to the PU550?
- UK mainland delivery is included in the price. Delivery to the Scottish Highlands and Northern Ireland is quoted on request. Every stool comes with a 5-year guarantee against normal wear and tear from the date of delivery, used under normal conditions during a conventional working day. In a shift or 24/7 working environment the guarantee is 2 years from the date of delivery. Purchase orders accepted from schools, colleges, universities, NHS trusts, government organisations and registered businesses. VAT invoice supplied. On finance systems we may appear as Mark Finn Lab Furniture or Lab Tables.

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