NANPU 3/8ft NPT FRL Combo - Filter, Regulator & Lubricator

In this review of the NANPU 3/8' NPT FRL Combo the bottom line is clear: this kit is aimed at hobbyists and light industrial users who need a compact, all-in-one compressed air treatment station that balances cost and functionality. The reviewer found the unit excels as a space-saving piggyback setup that filters to 5 micron, regulates pressure up to 125 psi and provides basic lubrication for pneumatic tools, making it a sensible choice where value and convenience matter most.

Key Features

• 3/8' NPT Piggyback Design: The integrated filter, regulator and lubricator save bench space and simplify installation for a single supply line.
• 5 Micron Brass Element: The standard 5 micron element removes fine particulates to protect air tools and downstream equipment.
• Pressure Range and Gauge: The regulator covers 0-125 psi operating pressure and includes a 0-150 psi gauge to monitor supply and adjustments precisely.
• Flow Capacity: With up to 70 SCFM (about 2000 L/min) at 90 psi the unit supports a range of pneumatic tools for light to moderate duty cycles.
• Polycarbonate Bowl with Guard: The transparent bowl and metal guard allow quick visual checks of moisture and contamination while adding durability.
• Included Accessories: The package includes coupler and plug kit, 2 x 3/8' NPT fittings and thread seal tape to get a system running right away.

Who It's For

This combo is best for home shops, small maintenance teams and DIYers who need a compact FRL that is simple to mount and service. It works well where a single run of treated air feeds an airbrush, impact wrench, or other pneumatic tools and where 70 SCFM peak flow is sufficient.

It is not ideal for heavy continuous industrial lines or multi-tool manifolds serving several operators simultaneously; those applications need higher capacity, larger ports and industrial-grade connectors. Buyers requiring stainless bowls or extreme temperature ratings should look elsewhere.

Pros & Cons

Pros

• Good value for money with an all-in-one FRL, gauge and mounting bracket included.
• Convenient piggyback style and compact footprint save space in tight setups.
• Transparent polycarbonate bowl with metal guard makes maintenance checks easy.
• Includes practical accessories like couplers, fittings and thread tape for quick install.

Cons

• Some users report occasional leakage on fittings or seals, so careful installation and leak testing are required.
• Not suited for heavy industrial flows or very cold environments below the specified temperature range.

Specifications

Connection Size	3/8' NPT
Filter Element	5 micron brass element
Operating Pressure	0-125 psi (max supply 145 psi)
Flow Rate	70 SCFM (2000 L/min) @ 90 psi
Gauge	0-150 psi pressure gauge included
Bowl	Polycarbonate bowl with metal guard, semi-auto drain

Our Verdict

The NANPU 3/8' NPT FRL Combo is a practical, cost-conscious choice for hobbyists and small shops that need filtration, pressure control and basic lubrication in a compact package. It delivers strong value with useful accessories and a clear sight bowl, but prospective buyers should install carefully and validate fittings to avoid leaks.

Frequently Asked Questions

Does the kit include fittings to install on my compressor?
The package includes two 3/8' NPT fittings, a pair of coupler and plug and thread seal tape so you have the basic hardware to hook it up.

What maintenance does the filter require?
Inspect the polycarbonate bowl visually for water and contaminants, drain regularly with the semi-auto drain and replace the 5 micron element when flow or pressure consistency degrades.

Can this unit handle heavy continuous duty?
It is rated to 70 SCFM at 90 psi which suits light to moderate use; heavy industrial continuous duty likely needs a larger capacity FRL.