GX Pump Professional-Grade Filter
Heavy aluminum 5800 PSI oil/water filter with a pressure-maintaining valve. Mounts upright on the side of a GX CS4 or CS4-I.
Made for: GX Pump CS4, GX Pump CS4-I · rated 5,800 PSI
Filters
The cheapest insurance for a PCP rifle is dry air. Here are the filters and separators worth adding, which compressors they fit, and which ones hold back pressure for drier air.
Filters & Separators
Dry air keeps seals and valves alive. Mount any filter upright, and look for a pressure-maintaining valve if you want the driest air.
GOYOJO Filter Dryer
5800 PSI inline filter dryer with desiccant and activated carbon. 8mm quick-connects, magnetic mount. The easy add-on for compressors without a separator.
Fits: Most compressors (8mm quick-connect), especially those without a built-in separator · rated 5,800 PSI
TOAUTO 30 MPa External Separator
A no-consumables separator: an aluminum body that knocks water and oil out by cooling and condensation instead of filter media. 30 MPa rated.
Made for: Most compressors with M10x1 / 8mm fittings · rated 4,350 PSI
Tuxing Molecular Sieve Separator
Long gold-anodized separator with molecular-sieve media, pressure-tested to 50 MPa. M10x1 / 8mm fittings and spare filter wool.
Made for: Most compressors with M10x1 / 8mm fittings · rated 4,500 PSI
Tuxing Four-Stage Filter
Budget full-size filter with four layers: molecular sieve, activated carbon, desiccant beads and cotton. Tuxing rates the media at about 40 bottle fills.
Made for: Most compressors with M10x1 / 8mm fittings · rated 4,500 PSI
FASTTOBUY 30 MPa Separator
Big, well-reviewed budget separator: seamless aluminum, 300 mm long, 30 MPa safety valve, spare element included. Same body dimensions as the GX Pro-Grade.
Made for: Most compressors with M10x1 / 8mm fittings · rated 4,350 PSI
Inline Cartridge Filters
The small screw-on "cigarette" style filters. Cheap, light, and better than nothing, but they hold very little media and fill up fast.
Creation Core Inline Filter
The best-selling inline cartridge filter (200+ a month). Tiny, cheap, 30 MPa, and comes with 20 refills.
Made for: Most compressors with M10x1 / 8mm fittings · rated 4,350 PSI
MEANLIN MEASURE Inline Filter With Hose
Inline cartridge filter that comes on a 20 in spring hose, so it's easy to add between compressor and gun. 30 MPa, 20 refills.
Made for: Most compressors with M10x1 / 8mm fittings · rated 4,350 PSI
Replacement Cartridges
Swap the media before it stops keeping up. A clear shell or a damp fill is your cue.
GOYOJO Filter Replacement Cartridge
Replacement activated-carbon and desiccant core for the GOYOJO Filter Dryer. The clear shell shows you when it's spent.
Made for: Most compressors with M10x1 / 8mm fittings
Roger's Take
"I'm not much of a fan of the little cigarette-cartridge filters. If that's all you have, it's better than nothing, but a full-size separator mounted upright does a much better job. And I can't vouch for the safety ratings on every one of these. Do your own due diligence before you trust a filter with 4500 PSI."
Warning: shop-air filters are not PCP filters
Amazon mixes regular air-compressor filters into PCP searches. Those are rated for roughly 90 to 200 PSI. A PCP compressor puts out 4500 PSI or more, so a shop-air filter can burst. Only use filters rated at or above your compressor's maximum pressure (look for 30 MPa / 4500 PSI or 40 MPa / 5800 PSI).