Hose Manufacturing Sales Team

Please contact us any time. Our experienced team is here to help.

Mark Petzold
Sales Manager
Mark Petzold
616-291-7961
Professional Experience

Plastic Hose Division General Manager

Mark Joined the Haviland team in January of 2008.

Mark brings to Haviland 20 years experience working in the plastics industry, working both in operations and engineering. Mark supplements his plastics industry experience with an AAS in Plastics Manufacturing and a Bachelors Degree in Business Science. Prior to Haviland, Mark was an Operations Manager for an injection molding company in the Automotive Industry. Beyond the Injection Molding, Mark gained extrusion and blow mold experience at a local vacuum manufacturer. Mark is combining his experience with Haviland’s hose manufacturing team to meet our customers

George Stone
George Stone
800-870-2399
Mark A. Wiltz
Mark A. Wiltz
616-813-2141
Professional Experience

Mark joined the Haviland Products team in 2001.

Mark began his career in the chemical industry with Action Chemical in 1995 as a territory sales manager. After his first year at Haviland Products, he took a position in the Consumer Products division in 2002 as an Account Manager responsible for various lines of Pool & Spa Chemicals. Currently Mark is the Sales Manager for ProTeam pool and spa chemicals and PoolCorp, the leading pool chemical organization in the industry. Mark’s knowledge of the product line makes him an invaluable resource to his many customers.


David O’Brien
David O’Brien
616-262-4242
Professional Experience

Dave joined the Haviland Products team in 1994. He has been raised in the Haviland environment since spending his High school summer vacation in the Consumers Packaging Division. While attending GVSU, Dave interned in Marketing and Human Resources. Dave spent nearly a decade with the Industrial division, specializing in solvents, custom formulations and product development. Dave currently serves as the Sales Manager for Distribution and Direct Sales of Pool and Spa Products.

Galen Hostutuler
Galen Hostutuler
913-832-8980
Professional Experience

Galen Hostutler joined the Haviland team in 2008. Galen is the Regional Sales Manager for Haviland Consumer Products division in the Western part of the Midwest and the Southwest. A 20-year veteran of the representation side of the swimming pool business, Galen came to Haviland after BioLab exited the distributor channel of the business. Before his short stint with Bio Lab, Galen has spent many years on the equipment side with Raypak, Sta-Rite Industries, and Ft Wayne Pools. Galen and his wife of 33 years, Sherry enjoy playing golf, and taking trips to Seattle to see the grandson and family there.


Mary Stoss
Mary Stoss
616 633-4098
Work History
  • Mary first joined the Haviland team in 1998. She worked in our Consumer Products Division through college and later graduated with an International Business degree from Aquinas College in Grand Rapids, Michigan. Upon completing her college education she moved to our Industrial Chemical Division and assumed the role of Sales Coordinator and later as a Regional Sales Representative focused on developing new market segments. Mary has since returned to our Consumer Products Division to work as the Regional Sales Manager for the Midwest.
Wayne Thornton
Wayne Thornton
616 889-8401
Work History
  • Wayne Thornton can credit much of his succes in the pool industry to a catalogue. From 1979 to 1987 Wayne was content in his position as Warehouse and Shipping Manager for Haviland Products and Consumer Products. Sears approached Haviland in 1987 to see if Haviland would be interested in adding swimming pool hoses to the line of pool products they were being supplied by Haviland. After a month-long hose crash course in Southern California, Wayne and Haviland produced the first foot of spiral wound hose on May 21st, 1988. By the end of 1988, Haviland Contoured Plastics had produced 400,000 feet of hose. Today, Haviland can produce one milion feet of hose per month.