Are your elements compatible with Donaldson Ultrafilter 90 ALU series housings? +
Yes. Our compatible replacement elements are manufactured to the same dimensional specification as the original Ultrafilter (Donaldson) 90 ALU cartridges. They are direct drop-in replacements — no housing modification required. If you have the Ultrafilter part number or size code, send it to us and we will cross-reference and confirm before you order.
What is the difference between Ultrafilter FF and MF grades? +
Both FF and MF are coalescing elements that remove oil mist and water aerosols, but at different efficiencies. FF (Fine Filter) removes particles and oil mist down to 1 µm — suitable for general industrial air. MF (Micro Filter) removes down to 0.1 µm with a maximum residual oil of 0.1 mg/m³ — required for painting, food processing and pharmaceutical applications.
How often should Ultrafilter elements be replaced? +
Ultrafilter / Donaldson recommends annual replacement — every 12 months or 4,000 operating hours, whichever is sooner. In Indian industrial environments (high humidity, dust), we recommend replacing every 8–12 months for critical-grade elements (SMF, AK). Watch the differential pressure indicator: a red reading means the element is saturated and must be replaced immediately.
What is the price of Ultrafilter replacement elements in India? +
Pricing depends on the element grade and size. Our compatible Ultrafilter replacement elements are 30–50% below OEM Donaldson pricing. Click "Enquire" next to your required size above, or WhatsApp us at +91-9810070303 with your size code and quantity for a same-day quote.
Is the SB grade available? +
The Ultrafilter SB (super-high-efficiency) grade is not currently stocked as a compatible replacement. If you require SB grade elements, contact us — we may be able to source or provide a suitable alternative from the Omega Air range that meets your air quality specification.