• Training Materials

To download the reference guides, please click the above links.

Here at Holland Supply, we take special care to ensure our customers know everything they need to know to properly use their equipment. We do this so that not only do they get the best use out of their equipment, but to also keep their customers, employees, and infrastructure safe. Whenever the need arises, we're always able to answer any questions or provide guidance when customers ask for it. But our team also loves to host training opportunities to help further customers' education about the products we have to offer.


The Holland team has held several hands-on training sessions centered on the Model 441 and Model 461 regulators from Utility Solutions Group. In the reference guides you can download on this page, we've compiled diagrams that will instruct you on how to replace the wetted parts for all 441 and 461 regulators. We wanted to share our knowledge and tools so you are able to find what you need with ease.

Download the Model 441 Wetted Parts Kit Reference Guide

Download the Model 461 Wetted Parts Kit Reference Guide