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Our History as a Custom Hose Manufacturer

Established in 1992 to meet the needs of the Thermoplastic LP Gas hose market, Flex-Tech Hose & Tubing quickly secured its place as a quality, custom manufacturer of Thermoplastic hose and tubing products.

Since the early 1990s, our innovative LP Gas hoses have been incorporated into RV manifolds to replace the clumsy and heavy copper tubing found in older RVs and houseboats. Since then, we have been honing the craft and we are well established as the industry leader in propane applications.

As our expertise grew, we began serving multiple industries, providing custom and specialized solutions. Flex-Tech Hose & Tubing is now considered a world class hose manufacturer serving the OEM, After-market, RV, marine, industrial and specialty hose markets.  With our in-house extrusion capabilities, we are able to specialize in bulk and custom solutions. We make and stock a wide range of extruded hose, hose assemblies, and tubing for gas, air and fluid handling. 

Flex-Tech has listings with many of the top standards organizations including UL, CSA and NSF and all our products are made to meet or exceed industry standards.

Custom Hose Solutions for Industrial Applications

We partner with engineers, project managers, sourcing agents, buyers, and owner/operators from a variety of industries to meet their unique production needs. Hoses and assemblies are a vital component to many industries, but off-the-shelf options don’t always work.  We collaborate with each customer to understand the type of fluid being used, pressure required, and other special requirements in order ensure the best solution is designed and manufactured.

In addition to meeting unique or unusual specifications, customers partner with Flex-Tech to solve challenges such as navigating complex importing/exporting procedures and developing new compounds for specific applications.


Meet Our Team


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Rusty St. Peter

General Manager, Texas Location

Rusty is the general manager of Flex-Tech Hose & Tubing Extrusion Division in San Marcos, Texas. He is responsible for the overall operations of the plant which includes extrusion and assembly of industrial, construction, LPG and general-purpose hose and tubing products. Prior to coming to Flex-Tech, he was the General Manager of Operations for Swan Hose in Waco, Texas. Rusty has over 25 years experience in manufacturing machine and facility maintenance engineering with fortune 500 companies. his background also includes Bell Helicopter, Kellogg's and Trico Wiper Systems with increasing roles and responsibilities.

Rusty completed Lean Six Sigma training through Textron while at Bell Helicopter with a strong focus on SMED in the  process of gearbox manufacturing.  Rusty's military service was in the U.S. Army and U.S. Navy where he served for 6 years. He is an avid outdoorsman with interests in hunting, fishing and camping.

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Joell Tomlinson

Accounting Manager

Joell is the Accounting Manager for Flex-Tech Hose in San Marcos, Texas and in Goshen, Indiana.  Her responsibilities include the overall daily operation of accounts payable, accounts receivable, cost accounting, banking, payroll, and monthly financial statements.  In addition to these responsibilities, Joell handles the annual review and administration of employee benefits along with human resource duties.

Joell has been with the company since May 1995.  She began in accounting with the S.H. Leggitt/Marshall Gas division then transferred over to FTH in 2011.  Prior to FTH, she was the Accounting Director for an import company of cabinets and bathroom accessories that distributed to the hardware market. 

Joell attended Texas Lutheran College focusing on Financial Management and Employment Law.  She has earned her Human Resource Generalist Certification from the Society of Human Resource Management and likes to spend her time outdoors.  She is a Director on the Comal County Fair Association volunteering her time as Chairman of Rodeo Hospitality for the local County Fair.  

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Mary Perez

Assembly Supervisor

Mary currently serves as our Assembly Supervisor, overseeing the crew responsible for producing quality products that keep customers satisfied. Her work ensures that Flex-Tech’s products are they best they can be prior to leaving the plant. 

Prior to joining Flex-Tech, Mary served as a Customer Service Manager for Walmart where she learned to juggle multiple responsibilities and interact with individuals from various levels of the organization.  Her retail experience translated seamlessly Flex-Tech where she is known for being a team player and encouraging her crew to get things accomplished quickly and efficiently.

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Tim Hopkins

Maintenance Manager

Tim is the Maintenance Manager for Flex-Tech Hose & Tubing in San Marcos, Texas. He is responsible for repairs, troubleshooting, and upgrades for the building and the extrusion equipment.

He has been an unrestricted journeyman electrician since 1992 and has managed teams of electricians in the Austin area and at University of Texas where he was involved in maintenance. He spent several months in Mongolia and Russia training and installing High Voltage AC and DC gear for production. Tim was also key in the maintenance, moving and set-up of the production and shipping departments at Deep Eddy Vodka from Dripping Springs to the new Buda, Texas location.

Tim enjoys golfing, spending time with family, and taking his 71 SS Nova to hot rod and classic car shows locally.

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Mario Hernandez

Shipping Manager

Mario grew up in San Marcos, Texas and went to San Marcos ISD.  He previously worked at Marshal Gas Controls, a branch of which became Flex-Tech Hose & Tubing.  For Marshal Gas, Mario was primarily working in the warehouse and shipping and receiving.  During his time at Marshall Gas, he was promoted to supervisor positions and given more responsibilities. 

Professionally, Mario is known for his expertise in logistics and shipping and receiving.  What he loves about the industry to the opportunity to meet people from all walks of life and all nationalities.  Mario is depended upon and well-liked in Flex-Tech and is aware of his strength as being a “people person.” 

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Rudy Martinez III

Quality Control Manager

Rudy is the Quality Control Manager for Flex-Tech Hose in San Marcos, Texas. His responsibilities include overseeing quality control processes and procedures to help improve the overall quality systems. When applicable, he introduces and incorporates new processes to ensure we deliver a superior product.

Rudy was born in San Antonio, Texas and briefly relocated to Albuquerque, New Mexico to attend Albuquerque Technical Vocational Institute where he studied Electronics. When he returned to Texas, he attended Austin Community College and earned an A+ Certification as a Computer Technician. P.C. repair continues to be a hobby of Rudy’s.

Rudy spent several years in the high-tech industry, working for such companies as Intel and Samsung. While working as a Field Service Technician for Horiba Instruments, a Japanese electronics company, he handled their Liquid Particle Monitoring System line. In the early 2000’s Rudy joined Goodrich Aerospace in San Marcos where he was a machine operator for specialized equipment that produced a titanium honeycomb core used in passenger airline production.

While with these companies, Rudy attended many training classes in quality control, quality assurance, lean manufacturing, statistical process control, Six Sigma, and studied Dr. Deming’s manufacturing philosophies. While employed with Flex-tech, Rudy became a member of the American Society of Quality, completing courses to become a Certified Quality Auditor and a Certified Quality Technician.

Rudy is very proud to have two of the best quality control technicians on his team - Maria Carr and William Rainey. Rudy is honored to work with individuals who are extremely professional, conscientious, and serious about the quality of Flex-Tech’s products.

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Gina Perez

Accounts Payable and Customer Service

Gina currently serves as our Accounts Payable and Customer Service Representative, specializing in resolving issues on behalf of the company. She is known for being a problem solver, ensuring that the customer is heard and receives what they need in a timely fashion. One of her favorite aspects of the potion is the teamwork involved in keeping customers satisfied.  Her previous experience includes several positions with Republic Plastics. She spent three years working in accounting before moving into customer service where she thrives.

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Dario Gomez

Production Manager

Dario was born and raised in Chicago where he attended Elgin Community College to study social studies and conflict resolution. After graduating, Dario spent 11 years in the stainless steel industry, working for a large stainless steel processor. He held various roles in several departments including packaging and production, eventually making his way to supervisor and then production manager.

Dario moved to Austin and joined Flex-Tech in 2021 as the Manufacturing/Extrusion Manager. His duties include managing the personnel and production side of the extrusion and manufacturing department.

In his spare time, Dario enjoys spending time with his wife and son, working on cars and reading about history and human geography.