Technical Guides

Freudenberg Viledon Equivalents: Compact T Pocket Filters and MaxiPleat MX Cassettes

2026-10-30

How Viledon Compact T pocket filters and MaxiPleat MX cassette filters compare with our synthetic pocket filter and V-Cell filter: ISO 16890 classes, sizes, airflow and what to confirm before you switch.

Key points

Viledon Compact T filters are synthetic, glass-fibre-free pocket filters; the closest Yiding product is our synthetic pocket filter.
Viledon MaxiPleat MX filters are glass-fibre V-cassettes, 292 mm deep; the closest Yiding product is our V-Cell filter, also 292 mm deep.
Freudenberg rates a 592 × 592 mm filter at 4,250 m³/h, more than the 3,400 m³/h used in our catalogue, so compare pressure drop at the same airflow.
Each quote comes with our own test report for the class you order.

Two Viledon families, two Yiding equivalents

Freudenberg sells its Viledon air filters in many series. Two of the most widely used in air handling units are the Compact T pocket filters and the MaxiPleat MX cassette filters.

Compact T pockets are made of synthetic fibres with no glass fibre, welded and foam-sealed into a polyurethane front frame. Our synthetic pocket filter is the closest match. MaxiPleat MX filters use micro-glass-fibre paper pleated in V-banks inside a plastic frame, 292 mm deep with a 25 mm header. Our V-Cell filter has the same layout and the same 292 mm depth.

Compact T pocket filters and our nearest grade

Viledon Compact T series, 592 × 592 × 650 mm (Freudenberg published data), and the nearest Yiding catalogue grade
Compact T series	ISO 16890	EN 779	Nominal airflow / initial pressure drop	Nearest Yiding grade
T 60	ePM10 60%	M6	4,250 m³/h / 65 Pa	60–65% dust-spot (MERV 11)
T 90	ePM2.5 65%	F7	4,250 m³/h / 100 Pa	80–85% dust-spot (MERV 13)
T 95	ePM1 75%	F8	4,250 m³/h / 140 Pa	90–95% dust-spot (MERV 14)

Freudenberg also lists a shorter T 60 at 592 × 592 × 510 mm, rated 3,400 m³/h at 55 Pa.

MaxiPleat MX cassettes and our nearest V-Cell grade

Viledon MaxiPleat MX series, 592 × 592 × 292 mm (Freudenberg published data), and the nearest Yiding V-Cell grade
MaxiPleat series	ISO 16890	EN 779	Nominal airflow / initial pressure drop	Nearest Yiding V-Cell grade
MX 85	ePM2.5 65%	F7	4,250 m³/h / 140 Pa	80–85% dust-spot (MERV 13)
MX 95	ePM1 65%	F8	4,250 m³/h / 150 Pa	90–95% dust-spot (MERV 14)
MX 98	ePM1 85%	F9	4,250 m³/h / 180 Pa	90–95% dust-spot (MERV 14)

Our catalogue grades are dust-spot ratings (ASHRAE 52.1) and do not convert exactly to ISO 16890. When you order against a Viledon series, we build to its ISO 16890 class and confirm it in the test report sent with the quote.

Sizes and airflow

Freudenberg rates its 592 × 592 mm filters at 4,250 m³/h. Our catalogue, like many makers, rates the same face size at 3,400 m³/h. At 4,250 m³/h any filter runs at a higher pressure drop than at 3,400 m³/h, so compare the two filters at the airflow your system actually uses.

Viledon face sizes and nominal airflow (Freudenberg published data) and our catalogue
Face size (mm)	Compact T nominal airflow (m³/h)	MaxiPleat MX nominal airflow (m³/h)	Our catalogue
592 × 592	4,250	4,250	595 × 595 mm pocket filter and V-Cell
492 × 592 / 592 × 490	2,175 (T 60)	3,500	Built to order
289 × 592 / 592 × 287	1,600 (T 60)	2,000	289 × 595 mm pocket filter and V-Cell
289 × 289 / 287 × 287	975 (T 60)	1,000 (MX 85)	Built to order

What to confirm before you switch

Depth: Compact T filters are mostly 650 mm deep, while our standard pocket depths are 381, 533, 762 and 914 mm. We build to 650 mm when you order against a Compact T code.
Frame: Compact T uses a polyurethane front frame; our pocket filters use a metal frame. Tell us the header thickness your holding frame needs.
Header: MaxiPleat MX has a 25 mm header. Our V-Cell comes in ABS or metal; tell us the header and gasket you use.
Glass-fibre-free: Compact T has no glass fibre, and neither does our synthetic pocket filter. Say so if your site requires it.
Temperature: our catalogue lists 60 °C continuous for pocket filters, and 40 °C continuous for the ABS-frame V-Cell. Choose a metal frame for warmer air.
Final pressure drop: EN 13053 recommends changing at initial pressure drop + 100 Pa or three times the initial value, whichever is lower.

How to order

Send the Viledon article number or model code from the label, or a photo of the label.
Give the quantity for each size and the design airflow, if you know it.
Tell us the frame and gasket you use today.
We reply with a drawing, a price and our test report for the class, so you can compare before switching.

Freudenberg, Viledon, Compact and MaxiPleat are trademarks of the Freudenberg Group. Yiding is not affiliated with Freudenberg. Viledon data on this page comes from Freudenberg's published product information (products.freudenberg-filter.com) and is used only to identify the size and class to be matched.

Frequently asked questions

Can a Yiding pocket filter replace a Viledon Compact T directly?

We build it to the same face size, depth and ISO 16890 class, so it fits the same holding frames. Confirm the frame and header when you order.

Is the V-Cell the same as a MaxiPleat MX?

No, it is a different manufacturer's filter. Both are glass-fibre V-cassettes 292 mm deep, so the V-Cell is the closest match in our range. Its performance is shown in our own test report.

Why does Freudenberg list 4,250 m³/h when your catalogue says 3,400 m³/h?

Makers choose different nominal airflows for the same face size. Compare filters at your system's real airflow, not at each maker's nominal value.

Do you make sizes like 492 × 592 mm?

Yes. We build to the face size and depth you give us, including the Viledon sizes in the table above.

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