We are an authorized distributor for LNI Swissgas, Nel Hydrogen, and NXT Power — bringing precision gas generation, water purification, and power protection to analytical laboratories and industrial facilities nationwide.
Southern Laboratory and Industrial was built around a straightforward premise: analytical laboratories and industrial facilities deserve a technically expert partner for on-site gas generation — not a remote catalog vendor who ships a box and moves on. The instruments we sell into require sizing, installation support, application knowledge, and ongoing service relationships. That’s what SLI provides.
We represent three best-in-class manufacturers whose products cover the full spectrum of laboratory and industrial gas needs: LNI Swissgas for precision benchtop generators, Nel Hydrogen for industrial PEM electrolyzers, and NXT Power for voltage conditioning and battery backup. Each brand was selected because it leads its category on performance, reliability, and manufacturer support — and because the combination covers every gas and power need a modern analytical or industrial facility is likely to have.
Our customers range from single-instrument university research labs and hospital clinical laboratories to multi-line analytical suites in contract research organizations, food and beverage production facilities, and large-scale industrial hydrogen consumers. Whatever the application — GC carrier gas, LC-MS nitrogen, GFAAS purge, or a fuel cell forklift fleet — the SLI portfolio has the right solution.
Each brand in the SLI portfolio was chosen because it sets the standard in its category. Together they cover every gas generation, water purification, and power protection need a modern lab or industrial facility is likely to have.
Italian manufacturer of laboratory-grade gas generators for analytical instrumentation. The global standard for on-site N₂, H₂, zero air, and water purification in analytical labs.
✓ Authorized DistributorOne of the world’s leading electrolyzer manufacturers. Nel’s PEM electrolyzers produce industrial-scale hydrogen from water — for fueling stations, forklift fleets, and process gas supply.
✓ Authorized DistributorPurpose-built voltage conditioners and UPS systems for the sensitive power demands of analytical instrumentation. The Integrity Series is engineered specifically for laboratory load profiles.
✓ Authorized DistributorBeing an authorized distributor means more than reselling products. It means delivering manufacturer-backed expertise and a service relationship that extends past the purchase order.
We analyze your instrument list, flow requirements, and facility constraints before recommending a generator. You get a system sized for your actual usage — not the nearest catalog entry.
As authorized distributors, we have direct access to LNI Swissgas, Nel Hydrogen, and NXT Power application engineers and technical support teams. Complex issues escalate to the people who built the product.
When you call or email SLI, you reach someone who knows the products and the applications. Pre-sales consultation, instrument compatibility questions, and post-installation support — all from one contact.
Our portfolio scales from an 80 VA power conditioner for a single analytical balance to a 1,140 SCF/h industrial electrolyzer for a fuel cell fleet depot. One partner, whatever your scale.
We build the business case alongside you: cylinder cost analysis, payback period modeling, and long-term supply chain risk assessment. The goal is a decision you can defend to finance and operations.
Generator installation, commissioning, preventive maintenance, and troubleshooting support backed by manufacturer resources. The relationship doesn’t end when equipment ships.
Whether you’re sizing a generator for a single GC or planning a hydrogen fueling depot, we’re the right first call.