Schroeder Industries
Schroeder has built US-made hydraulic, fuel, process, and gas filtration since 1946.
Authorized industrial filtration distributor serving the United States
Get the right hydraulic and industrial filters and keep your equipment running.
HydraStoke, LLC is a San Antonio, Texas-based industrial filtration distributor and authorized partner of Schroeder Industries, Hengst, Todd Technologies Inc. (TTI), HIFI FILTER, and MiQRON. We supply hydraulic, lube oil, fuel, process, gas, and air filtration to oil and gas, marine and offshore, mining, power generation, chemical, manufacturing, bulk fuel, and healthcare customers across the United States.
HydraStoke is an authorized distributor for five filtration manufacturers.
Hengst
Hengst pairs German engineering with the former Bosch Rexroth hydraulic filter line.
Todd Technologies (TTI)
TTI PowerGuard elements drop into OEM housings with β2000 efficiency as standard.
HIFI FILTER
HIFI covers entire fleets with more than 70,000 filters under one part-number system.
MiQRON
HydraStoke is the only authorized MiQRON distributor in the world.
Contamination wears down your equipment long before anyone sees the damage.
70%+
Share of hydraulic system failures caused by contamination, according to Schroeder Industries.
In hydraulic and lube systems, dirt, water, and varnish wear down pumps, stick valves, and shorten oil life. In fuel systems, water and particles clog injectors and keep backup generators from starting. By the time a system goes down, your crew, your schedule, and your budget are already paying for it.
We know the pressure of explaining downtime to leadership, and our job is to put you ahead of the next failure.
Protecting that equipment takes the right filter, the right micron and Beta rating, and a cleanliness target your team can actually hold. HydraStoke matches all three to your system from five manufacturers, then helps you keep fluid at your target ISO 4406 code.
Buying through HydraStoke gives you more options and faster answers.
Finding the right filter should take one call, and every operation deserves a supplier who answers it.
Your system sets the recommendation.
With five manufacturers on our line card, we can match US-made, European, OEM-grade, or cost-optimized filtration to the equipment you run.
Any part number can be crossed.
Hengst Filtration USA crosses 1.8 million part numbers, HIFI FILTER lists more than 450,000 cross-references, and Schroeder and TTI each cross more than 40,000 elements.
Quotes come back fast.
Our partner network gives us access to roughly 90% or more of all element types, so most requests turn into a quote quickly.
Stocking agreements simplify reorders.
Customers with a stocking agreement get our simplest ordering process and emergency supply when a critical system goes down.
We supply filtration for hydraulics, fuel, process water, gas, and air.
HydraStoke carries the full product lines of every manufacturer we represent. Minimum order quantities apply to some items.
Hydraulic and lube filters
Housings run up to 6,500 psi with elements rated by micron and Beta ratio.
Replacement filter elements
OEM-equivalent elements fit Pall, Parker, HYDAC, and Donaldson housings.
Fuel and diesel filtration
Polishing systems and coalescers remove water and particles from bulk diesel.
Filter carts and offline filtration
Carts and kidney loops clean oil during transfer or while equipment runs.
Desiccant breathers
Breathers stop moisture and dirt at the tank vent, where most contamination enters.
Process and water filtration
Self-cleaning backflush, bag, and cartridge systems handle process and frac water.
Gas filtration
Filters protect natural gas, CNG, and hydrogen systems.
Sensors and condition monitoring
Particle counters, water sensors, and clogging indicators track fluid health.
Indoor air purification
MiQRON heated-filter units protect hospitals, schools, and offices.
US-made options are available across hydraulic, fuel, and process lines.
Our services keep your fluid clean after the filter ships.
Contamination control is an ongoing program, and HydraStoke stays involved for the life of your equipment.
In-house cross-referencing
Our team matches your current part numbers to verified equivalents.
Filter carts
Portable carts clean hydraulic oil and diesel fuel without stopping the machine.
Fluid analysis kits
Sample kits show your actual cleanliness code and water content.
On-site audits
We walk your site and identify where contamination enters each system.
Stocking programs
Your critical elements stay on hand and reorder on schedule.
Emergency supply
Stocking-agreement customers get priority supply when a system goes down.
Getting the right filter takes three steps.
01
Send your part number or RFQ.
Share the part you run today, your specifications, or a description of the problem.
02
Get a matched quote.
Our team cross-references your part and quotes the best fit across five brands, with lead time included.
03
Stay stocked and running.
A stocking agreement keeps critical elements on hand and puts emergency supply behind every system.
Our team has spent decades inside the industries we serve.
HydraStoke's leadership brings more than 27 years of oil and gas business development across upstream, midstream, and downstream operations. Former senior ExxonMobil and Imperial Oil executives serve on our advisory board.
Meet the HydraStoke team“Our filter cart from HydraStoke makes it easy to keep our oil clean and your equipment running smoothly. It pulls out dirt and contaminants that can cause wear and tear, helping extend the life of both our oil and our machinery. It's simple to use, reliable, and built to handle tough jobs, making routine oil filtration quick and hassle-free. With cleaner oil, we get better performance and less downtime on the job. The staff at HydraStoke is friendly, helpful, and quick to respond to any questions. HydraStoke has made sure the whole process was easy. I really appreciate the professionalism and care and would recommend them to anyone looking for filtration services.”
We serve operations where downtime is expensive.
Oil and gas
Hydraulic, fuel, and frac water filtration serve upstream through downstream.
Marine and offshore
Rugged housings protect shipping, workboats, and FPSOs.
Mining
Fuel polishing and hydraulic filtration keep heavy equipment running.
Power generation
Lube, turbine oil, and fuel filtration protect generating assets.
Data centers
Fuel polishing keeps backup generator diesel ready to start.
Bulk fuel
Water removal and polishing protect stored diesel and oils.
Chemical processing
Process filtration handles demanding fluids and flow rates.
Manufacturing
Clean hydraulics keep production lines and machine tools on schedule.
Steel
High-flow lube and hydraulic filtration stands up to mill conditions.
Healthcare and HVAC
Air purification protects hospitals and care facilities.
Frequently asked questions about HydraStoke
What does HydraStoke do?
HydraStoke, LLC is an industrial filtration distributor based in San Antonio, Texas. It supplies hydraulic, lube oil, fuel, process, gas, and air filtration from Schroeder Industries, Hengst, Todd Technologies Inc. (TTI), HIFI FILTER, and MiQRON, along with cross-referencing, filter carts, fluid analysis kits, on-site audits, and stocking programs.
What brands does HydraStoke carry?
HydraStoke is an authorized distributor of Schroeder Industries, Hengst, Todd Technologies Inc. (TTI) PowerGuard and PowerBreather products, HIFI FILTER, and MiQRON. The company carries each manufacturer's full product line, and minimum order quantities apply to some items.
Where is HydraStoke located?
HydraStoke is headquartered in San Antonio, Texas, and serves customers across the United States. Call 713-364-6126 or email info@hydrastoke.com to reach the team.
Can HydraStoke cross-reference my current filter?
Yes. Send a part number from Pall, Parker, HYDAC, Donaldson, Fleetguard, Rexroth, or another brand, and HydraStoke's team will find an equivalent. Its manufacturers' combined cross-reference data includes 1.8 million part numbers from Hengst Filtration USA and more than 450,000 references from HIFI FILTER.
Where can I buy MiQRON air purifiers?
HydraStoke is the only authorized MiQRON distributor in the world. MiQRON's MiQRO-Therm technology, developed at the University of Houston, passes air through a heated filter that kills airborne viruses, bacteria, and spores, combined with a HEPA filter, for hospitals, care facilities, schools, and offices.
What causes most hydraulic system failures?
Contamination causes most hydraulic system failures. Schroeder Industries states that more than 70% of hydraulic failures are caused by contamination from particles, water, and air. Correctly rated elements, desiccant breathers, offline filter carts, and regular fluid analysis keep a system at its target ISO 4406 cleanliness code.
Picture your operation with clean fluid and the right filters on the shelf.
Critical elements are on hand before you need them.
Your fluid holds its target cleanliness code.
Your crew spends its time on production.
You become the person who saw the problem coming.
Every month without a filtration plan adds wear your team will pay for later.
Send us your next RFQ and see how fast we respond.
A member of our team reviews every request personally.