Full-service technical diving gas station serving the St. Louis dive community. From a quick air top-off before the quarry to custom trimix blends for the deep stuff — we mix it right, check it twice, and never rush a fill.
Whether you're heading to the quarry, cave diving going to Roubidoux Springs or a CCR diver prepping bailouts, we have the gas, the gear, and the patience to get your blend right.
Filtered, dry, breathing-grade Grade-E air fills to 3442 PSI. Bauer compressor with high purity filtration. Appointment needed for all services.
Partial-pressure blending for EAN 32, 36, or any custom mix up to 99%. Every blend is analyzed by you and us before it leaves the shop — bring your analyzer or borrow ours.
Custom helium-based blends for cave, wreck, and deep diving. Bring your gas requirements and I'll fill your tank.
Pure aviator-grade oxygen for decompression cylinders, CCR oxygen tanks, and rebreather bailouts. All O₂ service equipment is dedicated and oxygen-cleaned. Price is for AL40 size tanks or smaller. Larger tanks are more.
Annual visual inspection per PSI/PCI standards. I pull the valve, inspect the tank interior, check the neck threads, re-grease or replace the o-ring, and issue a fresh VIP sticker. Air fill is included.
Standard fills in 15–20 minutes. Nitrox/Custom trimix blends need a day or two.
PSI/PCI Visual Inspector Certified. I dive what I mix I am an active cave and wreck diver.
Mix Sticker applied to tank after analysis using DIVESOFT He/O₂ Analyzer or you can bring your own.
Single-tank pricing below. Trimix is priced by cu/ft of helium, call/text/email for a quote.
South County's only Full Service Fill station for SCUBA.
Standard air fills can be done while you wait, anything else will need to be dropped off. Nitrox/O2 can usually be done next day. Trimix needs several days notice, please plan ahead!