When I installed my Facet lift pump (under the hood) I put a cheap plastic $3 fuel filter in front of it. Mainly to protect the pump.
Yesterday my CRD stalled on me while driving. Knew right away it was the fuel filter.
It stalled two more times while driving to the nearest Napa that had a CRD fuel filter in stock. When I changed my filters I noticed the cheap pre-filter was full of sediment.
I probably could have gotten away with just changing the pre-filter but why risk it.

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U.S. Army Retired

I have not installed my Facet pump but when I do I have a Moeller Universal Inline Glass filter which I will install as a prefilter. Easy to eyeball and worth the minor $s

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

I use one of those little glass body inline filters before my Facet pump, since they recommend it. Never had one clog though.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

X3 glass filter, always looks clean on both Libbys.

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20 year owner of Libby CRD!
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.