{"product_id":"1-4-in-npt-auto-drain-frl-combo-compact-air-filter-regulator","title":"1\/4 in NPT Auto-Drain FRL Combo - Compact Air Filter Regulator","description":"\u003cp\u003eIn this review the NANPU 1\/4 in NPT Auto-Drain FRL combo is evaluated for workshop and light industrial air systems. The bottom line: this unit is for users who need a compact, cost-effective way to regulate pressure and separate water and oil from compressed air. Its single biggest selling point is the 5 micron brass filter element combined with an automatic drain and a solid flow rating, which together provide consistent filtration and reduce moisture in downstream tools and pneumatic equipment.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4 in NPT piggyback design:\u003c\/strong\u003e combines filter, regulator and lubricator in a compact package to save space on an air line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 micron brass element:\u003c\/strong\u003e offers fine filtration to trap water and oil droplets and extend the life of downstream tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-drain:\u003c\/strong\u003e automatically removes accumulated moisture to limit manual maintenance and keep the bowl clearer for longer runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow rate 18 SCFM:\u003c\/strong\u003e supports typical small compressor outputs and pneumatic tools at 90 psi without significant flow loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded accessories:\u003c\/strong\u003e arrives with a polycarbonate bowl, 0-150 psi gauge, mounting bracket, metal couplers, fittings and thread seal tape to simplify installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e brass filter element and metal bracket offer better reuse feasibility compared with paper-only filters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis combo suits hobbyists, small shops, and maintenance teams who run air tools, spray guns, or small pneumatic equipment and want an economical way to reduce moisture and contamination. It is a good match when the compressor output is in the low tens of SCFM and space is limited.\u003c\/p\u003e\n\u003cp\u003eThose who need very high flow rates, industrial-scale filtration, or factory-grade modular FRL systems should look elsewhere; also, buyers who require stainless bowls for harsh chemicals should consider different materials. For typical garage and light industrial use, however, this unit balances cost and capability well.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompact piggyback layout saves installation space and integrates regulator and lubricator functions.\u003c\/li\u003e\n\u003cli\u003e5 micron brass filter element gives excellent filtering performance and longer reuse life than disposable media.\u003c\/li\u003e\n\u003cli\u003eAuto-drain and included gauge, fittings and bracket reduce setup time and ongoing maintenance effort.\u003c\/li\u003e\n\u003cli\u003eGood value for money for hobby and light commercial use, with a solid flow of 18 SCFM at 90 psi.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users reported fit and casting durability issues, and a small number experienced leakage or missing fittings in shipment.\u003c\/li\u003e\n\u003cli\u003ePolycarbonate bowl is convenient but may not suit very aggressive environments or chemical exposure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003e1\/4 in NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e0-125 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGauge\u003c\/td\u003e\n\u003ctd\u003e0-150 PSI included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Element\u003c\/td\u003e\n\u003ctd\u003e5 micron brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate\u003c\/td\u003e\n\u003ctd\u003e18 SCFM (approx 500 L\/min) at 90 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBowl\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories Included\u003c\/td\u003e\n\u003ctd\u003eBracket, couplers, plug kit, 2 x 1\/4 in NPT fittings, thread seal tape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe NANPU 1\/4 in NPT Auto-Drain FRL combo is a practical, budget-friendly choice for small shops and home mechanics who need reliable moisture separation and pressure control. With a 5 micron brass element, auto-drain and decent 18 SCFM flow, it delivers strong value, though users who require heavy industrial durability or chemical-resistant bowls should consider higher-spec alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the bowl shatterproof?\u003c\/strong\u003e\u003cbr\u003eThe unit uses a polycarbonate bowl which is durable for normal workshop use but not chemical-resistant for aggressive fluids.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this supply an airbrush or small spray gun?\u003c\/strong\u003e\u003cbr\u003eYes, the 18 SCFM flow at 90 psi and 5 micron filtration are suitable for airbrushes and small spray guns in hobby and light commercial settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come ready to install?\u003c\/strong\u003e\u003cbr\u003eYes, it ships with a bracket, gauge, metal couplers, fittings and thread seal tape to simplify installation, though some buyers reported occasional missing parts.\u003c\/p\u003e","brand":"NANPU","offers":[{"title":"Default Title","offer_id":48244613546203,"sku":"B0BMLBN2CG","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71x-6IdstXL._SL1500.jpg?v=1771094880","url":"https:\/\/gearmusthave.com\/products\/1-4-in-npt-auto-drain-frl-combo-compact-air-filter-regulator","provider":"GearMustHave","version":"1.0","type":"link"}