NANPU 3/8ft NPT Air Filter Regulator Lubricator Combo - Reliable Flow

In this review of the NANPU 3/8' NPT piggyback unit, the bottom line is simple: this combo is for small workshops or hobbyists who need a compact, economical compressed air treatment station that both filters and conditions air before tools. The reviewer found its single biggest selling point to be the combination of a 5 micron brass filter element and a robust flow rating, which together deliver reliable separation of water and particulates at common shop pressures while remaining easy to install.

Key Features

• 3/8' NPT piggyback design: combines filter, regulator and lubricator in one compact unit to save space and simplify piping.
• 5 micron brass filter element: traps fine particulates and provides a longer life and reuse feasibility compared with cheap disposable elements.
• Flow rate 60 SCFM: supports most small to medium air tools at 90 psi, keeping steady airflow for intermittent shop use.
• Polycarbonate bowl with metal guard: allows visual inspection of collected water and debris while protecting the bowl from impact.
• Semi-auto drain and fittings included: makes routine maintenance easier and the kit includes couplers, plug kit and thread tape for faster setup.

Who It's For

This unit is best for home mechanics, small fabrication shops and hobbyists who need an all-in-one filter regulator lubricator that is compact and affordable. It suits setups where 3/8' NPT connections and flows up to around 60 SCFM cover most tool needs, and where visual bowl inspection and an included bracket simplify mounting.

Those who should look elsewhere include users needing industrial-scale continuous high-flow systems or those requiring stainless steel bowls and fittings for corrosive environments. Also, buyers who demand factory-perfect casting and zero reports of leak points may prefer a higher-end industrial model.

Pros & Cons

Pros

• Solid filtration and reuseable brass element give good value over time.
• Complete kit includes gauge, couplers, fittings and bracket for quick installation.
• Good flow capacity for small shops with the convenience of a piggyback unit.
• Polycarbonate bowl with metal guard makes inspection and protection simple.

Cons

• Some customers reported occasional leakage or casting damage, so careful installation and inspection are advised.
• Not intended for high-end industrial continuous duty where larger flow or different materials may be required.

Specifications

Connection Size	3/8' NPT
Operating Pressure	0-125 PSI
Gauge	0-150 PSI included
Filter Element	5 micron brass
Flow Rate	60 SCFM (approx 1700 L/min) @ 90 PSI
Bowl	Polycarbonate with metal guard
Included Accessories	Semi-auto drain, bracket, 2 couplers & plug kit, 2 x 3/8' NPT fittings, thread seal tape

Our Verdict

The NANPU 3/8' NPT filter regulator lubricator combo is a pragmatic, cost-effective choice for hobbyists and small shops that need dependable air treatment without bulk. With a reliable 5 micron brass element, solid flow capacity and useful accessories included, it represents good value if installed carefully and inspected for fittings or casting issues noted by some users.

Frequently Asked Questions

Will this unit handle most air tools?
Yes, at 60 SCFM (approx 1700 L/min) at 90 psi it covers many small to medium air tools, though heavy continuous-demand tools may exceed its best range.

Is the bowl durable and easy to maintain?
The polycarbonate bowl with a metal guard allows visual checks and protection; the semi-auto drain helps maintenance, but avoid harsh chemicals that could damage the bowl.

What comes in the box to install it?
The package includes a 0-150 PSI gauge, bracket, semi-auto drain, a pair of metal air couplers and plug kit, two 3/8' NPT fittings and thread seal tape for a quicker setup.