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| Part Type | Compressed air filter cartridge |
| Replaces | Festo 363667 (LFP-D-MIDI-40M) |
| Festo Type Code | LFP-D-MIDI-40M |
| Filter Size | D series MIDI |
| Filtration Rating | 40 µm |
| Filter Media | White sintered filter element |
| Medium | Compressed air |
| Stat. HS-Code | 842199 |
| Brand | Code |
|---|---|
| Festo | 363667 |
| Spare Part Mart | SPM-INF-2421 |
Price Beat Guarantee: We've crawled the internet to guarantee you're getting the best price. Here's what competitors are selling this exact filter for:
You're saving approximately 40% on Festo 363667 buying from SPM.
Standard air preparation
Every Festo D series filter and filter regulator carries one of these cartridges as its main particle filter.
5 µm or 40 µm grade
Use the 40 µm grade for general plant air and the 5 µm grade in front of valve terminals or a fine filter.
Pre-filter for fine and micro filters
A clean standard cartridge ahead of an LFMB or LFMA stage makes the finer cartridges last longer.
Planned maintenance
Change the cartridge when the differential pressure indicator shows it is loaded, or at least once a year.
No. It is an aftermarket cartridge made to fit. It is not made by or affiliated with Festo; the Festo number 363667 and type LFP-D-MIDI-40M are shown only so you can match the part you are replacing.
Check the type plate on the filter housing. This cartridge fits LF-...-D-MIDI filters and LFR-...-D-MIDI filter regulators (40 µm grade). If your old cartridge is marked LFP-D-MIDI-40M or 363667, this is the replacement.
Change it when the filter's differential pressure indicator shows it is loaded, or at the interval in your maintenance plan.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Orders typically require 1 to 5 business days for processing. During this time, we confirm product availability and prepare the shipment for consolidation.
We offer two shipping tiers. The exact cost and transit time for every option are quoted live at checkout, and you can also check them from the cart page before you buy.
Express (DHL, UPS, EMS)
For urgent needs. Transit is typically 3 to 8 business days after dispatch, depending on destination.
Economy (air cargo and special lines)
Our standard, cost-effective option. Transit is typically 5 to 15 business days after dispatch.
Shipping costs are calculated at checkout based on your location and selected shipping method.
Once your order ships, you'll receive a tracking number via email so you can monitor your delivery.
For detailed delivery information and FAQs, please visit our Delivery Information page or contact us.

