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Lab Gas  ·  Power Protection  ·  Industrial Hydrogen

Your lab runs on
precision gas.
Never run out again.

Southern Lab & Industrial supplies, installs, and services on-site hydrogen, nitrogen, and zero-air generators for laboratories across the Gulf Coast — backed by expert local support when you need it most.

Request a Quote → View Lab Gas Generators
Authorized LNI Swissgas Distributor
Nel Hydrogen Authorized Partner
NXT Power Partner
Turn-Key Installation & Commissioning
Houston-Based Technical Support
Laboratory Solutions

On-site gas generation engineered
for analytical precision

Replace costly, hazardous gas cylinders with a continuous, on-demand supply of ultra-high purity hydrogen, nitrogen, and zero air — purpose-built for your instruments.

LNI Swissgas HG PRO Hydrogen Generator
H₂ Generator

Hydrogen Generators — HG Series

Generate ultra-pure hydrogen on-site for GC carrier gas, FID detector fuel, and fuel cell testing. Eliminates cylinder deliveries, storage costs, and safety risks. Bench-top to high-capacity rack-mount configurations.

Purity up to 99.99999% 30 cc/min - 20 Liters per minute Proton Exchange Membrane (PEM) caustic-free 174 psi (12bar) - 232 psi (16 bar optional
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LNI Swissgas NG CASTORE Nitrogen Generator
N₂ Generator

Nitrogen Generators — NG Series

Ultra-high purity nitrogen for LCMS, GC-FID, ICP, ICP-MS, ELSD, FTIR, sample evaporation, and incubators. PSA and membrane models with built-in oil-free compressors. Stackable with H₂ and zero-air generators.

Purity up to 99.9999% Pressure up to 130 psi (9 bar) Hydrocarbon spec as low as < 0.05ppm *measured as methane Oil-free compressor
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LNI Swissgas ZA Total Zero Air Generator
Zero Air Generator

Zero Air Generators — ZA Series

Hydrocarbon-free zero air for FID baseline calibration, combustion analysis, and certified gas standards. Catalytic oxidation technology eliminates hydrocarbons to sub-ppm levels for reliable detector performance.

<Total Hydrocarbon (THC) spec as low as < 0.05ppm *measured as methane FID / VOC calibration Catalytic oxidation
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LNI Swissgas HLP Water Purification System
Water Purification

Water Purification — HLP Series

ASTM Type I & II deionized water for hydrogen generator feed water, AAS, ICP/MS, IC, and HPLC. Reverse osmosis plus ion exchange delivers conductivity below 0.06 µS/cm. UV models available.

<0.06 µS/cm ASTM Type I & II RO + ion exchange
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NXT Power Integrity Power Conditioner
Power Protection

Power Conditioners & UPS — NXT Power

Protect sensitive analytical instruments from surges, sags, and outages with NXT Power's Integrity Series. Single-phase conditioners from 1200 VA to 7000 VA. Rack-mount UPS for always-on instrument uptime.

1200 VA – 7000 VA UPS + conditioner 120 / 208 / 240 VAC
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Nel Hydrogen S Series Industrial Electrolyzer
Industrial

Industrial Hydrogen Generation — Nel

Large-scale on-site hydrogen generation for industrial processes, fueling stations, and green energy. Nel's PEM electrolyzers deliver 99.9995% purity H₂ with full load-following from water and electricity.

Proton Exchange Membrane (PEM) electrolyzer - caustic-free 10 SCF/h (0.27 Nm^3/h) - 1,140 SCF/h (30 Nm^3/h) 200 psig (13.8 barg) - 435 psig (30 barg) delivery pressure
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Applications

Built for the instruments you rely on

Our gas generators are configured and certified for the most demanding analytical laboratory and industrial applications. If your instrument runs on gas, we have a solution.

GC / GC-MS
Carrier gas, make-up gas, FID fuel
ICP / ICP-MS
Nebulizer gas, torch cooling
LCMS / UHPLC
Carrier gas, Collision cell, ELSD nitrogen supply
FTIR / NIR
Purge gas, atmospheric control
FID Detectors
Hydrogen fuel, zero air oxidant
TOC Analyzers
Carrier & combustion gas
Sample Evaporation
N₂ blow-down workstations
Fuel Cell Testing
On-demand H₂ supply
Incubators & Bioreactors
Controlled atmosphere gas
Critical Power
Instrument UPS & conditioning
AAS / Flame AA
Acetylene-free flame gas
Industrial H₂ Fueling
PEM electrolysis at scale
Our Partners

Premium brands. Authorized distribution.
Expert local support.

We carry only ISO-certified, field-proven equipment from manufacturers that share our commitment to performance, reliability, and innovation.

LNI Swissgas
Swiss precision. Italian design.

A global leader in laboratory gas generation, LNI Swissgas manufactures hydrogen, nitrogen, zero-air, and specialty gas generators renowned for their precision engineering. ISO 9001, ISO 14001, and ISO 17025 certified.

HG Series H₂ NG Series N₂ ZA Series Zero Air Water Purification
Nel Hydrogen
Global hydrogen leader since 1927.

Nel delivers world-class PEM electrolysis systems for industrial-scale hydrogen production. Their S Series generators are deployed globally for fueling, industrial processes, and green energy applications.

S10 / S20 / S40 H2 / H4 / H6 C10 / C20 / C30
NXT Power
The cleanest power for your instruments.

NXT Power's Integrity Series power conditioners and UPS systems are engineered specifically for laboratory and scientific equipment — delivering clean, reliable power across a diverse range of facilities.

Integrity Conditioners Integrity MAX UPS Single & 3-Phase
Why SLI

More than a distributor —
a long-term lab partner

We don't just ship boxes. We work alongside your team from specification to installation to ongoing service — so your lab never misses a beat.

01
Turn-Key Installation

We install, commission, and validate every system we sell. Your team gets a fully operational solution, not a pallet of boxes.

02
Local Expert Support

Houston-based engineers with deep product knowledge. Fast response times and real people who know your instruments.

03
Certified Equipment Only

LNI Swissgas, Nel, and NXT Power are ISO-certified and field-proven across thousands of labs worldwide.

04
Ongoing Service Plans

Maintenance contracts, preventive service, calibration, and rapid parts availability to protect your uptime.

Get a Quote

SLI Gas Generation Systems

Tell us your application and requirements — we'll spec the right system and send you a detailed quote within 24 hours.

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