UP91 Ultimapleat panel filter

Minipleat panel, 25mm deep, galvanised steel frame

UP91 Ultimapleat panel filter
Image spec · 440 × 440px (1:1) Output 2× WebP (ideally 4×, reduce where needed)

592 × 592 × 25 mm

UP91-5959-25

In stock~27 available

Pockets
4
Header depth
20 mm
Capacity
850 m³/hr
Pressure drop
55 Pa
Energy class (Eurovent 4/21)
C
Filter class
ePM10 >55% (EN 16890)
Net weight
0.73 kg
£92.00 ex VAT −20%
QuantityDiscountUnit price
1–4£
5–9−5%£
10–24−8%£
25+−15%£
Free UK shipping over £250
Eurovent certified performance Certified performance for general ventilation filters, ePM10, ePM2.5 and ePM1
Since 1972 UK manufacturing heritage
Bespoke sizes made to order

High efficiency: the hydrophobic glass-fibre media removes fine particulates effectively, suiting environments that need clean air.

Low pressure drop: the minipleat design and quality media allow high airflow with minimal resistance, reducing energy consumption.

Long filter life: ultra-compact construction and high dust-holding capacity extend service intervals. Optional seals and grills suit various mounting requirements.

  • Minipleated hydrophobic glass-fibre media: maximises filtration surface area while holding a low pressure drop.
  • Hotmelt pleat separators: keep pleat spacing uniform for consistent airflow and dust loading.
  • Galvanised steel frame: robust structural integrity and corrosion resistance.
  • Optional face seals and grills: add installation flexibility and protection.
  • Fire rated to DIN53438 F1: suitable for stringent fire-safety requirements.
  • Eurovent certified: meets recognised European air-filter performance standards.
Filter class (ISO 16890)ePM1 > 80%
Grade (EN779:2012)F9
Filter efficiency PM180%
Filter efficiency PM2.580%
Fire ratingDIN53438-3 F1 / F1 / K1
Max continuous operating temp.80°C
Final recommended pressure drop3 × initial PD, or +100Pa (EN13053:2019)

Rated airflow, initial pressure drop and energy rating are size-dependent, see the Standard sizes table below.

Pressure drop (Pa) vs velocity (m/sec) · representative, shown for 594 × 594 × 25

Standard sizes · 9 sizes

All prices ex VAT
Product Headermm Pockets Capacitym³/hr PressurePa Net wtkg Notes Buy
selected

Need a size that isn't listed?

We make non-standard panel filters to your exact dimensions and grade, dispatched from the UK. Send us your sizes and we'll price it.

Request a custom size →
Wireframe & dev notes

Hi-fi tech-port of pdp.html. Resolved through @theme tokens (Tailwind v4 in-browser build + token guard), with the hi-fi header fork coming from site-header.js via the hifi filename.

Trust band is the shared .trust-strip component from index-hifi.html (same stroke icons + Eurovent tooltip), not a PDP-only variant.

Standard sizes = the PLP product grid, scoped to one series. Same .spec-table component and CSS as plp-hifi.html: zebra rows, soft-blue hover, selection tint, sortable headers with the ink accent bar, pinned Product + Buy columns, the RS-style draggable scrollbar (specScroll()), real thumbnails and the mobile show-specs toggle. Differences from the PLP: no facet filters, rows are size variants of one product (the name link does not navigate), header/pockets/pressure/net-weight are a dash on a panel, and Capacity = rated airflow.

New hi-fi pieces (review-first gate). .pdp-cta custom-size banner mirrors the .ff-guide block on filter-finder-hifi.html. Accordions animated with @alpinejs/collapse, description open by default. Hero image is a placeholder (placeholder-panel-filter-image.jpg) with an export note overlay.

Pressure-drop curve stays a placeholder pending the real chart.

Dev. The PLP spec-table CSS still lives inline here and in plp-hifi.html, not site.css, promote it to site.css for true one-component reuse.