About us

SonomaTesting was founded in 2008 to provide access to replacement parts for industry. Our products include, but are not limited to: electrical test equipment, air and water quality test equipment, air, oil and fluid filtration components and a wide range of lubricants. Our Filter Media can support components within multiple industry sectors.  Our online catalog includes nearly 500,000 replacement part numbers in a searchable format. We provide an online order process to give you quick access to component pricing and ordering without the need to wait for quotations.  This allows our customers to save time and money.
This website represents a sampling of our inventory.  We fabricate, have stock, or immediate access to, other product lines, as well as replacement parts for multiple makes and models of OEM equipment.  Please contact us if you are not able to find a particular part or item.
We make it simple and easy for you to find replacement parts. OEM part number references allow you to search for parts online quickly and directly, without having to wait for catalogs or quote responses. If you are searching for an older part, or have other questions, just email us and we will respond immediately.
SonomaTesting can also help your Customers.  If your business is seeking replacement parts for distribution outside of the USA, we can set up a distributor relationship with your company.  Consolidating orders and developing a more direct line of shipping is a direct benefit to the Customers you serve.
Our parts meet or exceed all OEM standards and specifications in form and fit.  Specification Sheets and Certificates of Conformance are available upon request.
Terms/Conditions
SonomaTesting is a distributor and reseller of OEM and aftermarket replacement products.  We do not claim to be directly affiliated with any of the manufacturers referenced herein.  Names and part numbers are provided for reference purposes only.