Heavy Duty 40 Micron NPT Hydraulic Tank Breather Cap 2 Pack. Aluminum Alloy Vent Filter Prevents Rust And Keeps Gear Oil Clean. Perfect For Industrial Diesel Equipment And Fluid Reservoirs. Reliable Sealing That Holds Up Under Pressure For Smooth,

Heavy duty 40 micron npt hydraulic tank breather
✔️ two unit aluminum breather caps shield gear oil from dirt

These handy breathable caps swap right onto standard filler necks to keep dust out. You will mount them directly onto gear oil sumps, diesel tanks, or CNC coolants to maintain safe internal pressure levels. The built in screen keeps gritty dirt away from your moving parts.

✅ 40 micron filtration catches microscopic dust and prevents bearing wear
✅ Balanced pressure release stops vacuum lock and keeps gears turning smooth
✅ Corrosion resistant materials handle salt spray and grease splatter easily
✅ Threaded mounting designs work alongside standard industrial fluid casks

💡 Why choose aluminum hydraulic tank caps for oil resistant sealing?
Reliably ventilating fluid reservoirs means stopping dirt entry while fixing pressure.
- Threaded npt fittings slide straight onto most tractor and truck fill openings
- Carbon steel inserts grip tight under vibration without stripping over time
- Wide mesh layouts dodge sludge patches that choke thinner plastic filters

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