Customer Service

We're Delighted To Assist You Personally


CSRWe provide the best customer service around!

Whether you have questions about selecting or using a product, need help placing an order, or simply want to share feedback or concerns, our friendly and knowledgeable staff is on hand to assist you.

Delighting you every time is our goal!


PHONE: 1.800.860.6272, Mon-Fri, 7 am - 6 pm MT.

FAX: 1.888.860.2344

Featured FAQ & Categories

Here's what a few customers have to say: 

Thank you HST, your service is of unbeatable quality!” —Elizabeth 

I found the customer service a great help.” —Darci

I couldn't ask for better service. This company has earned my business. “ —Michelle

If you need help placing your order or are looking for more information about our company or products, please see the links below.

Still have questions? Give us a call and we'll be happy to help!

Shopping Information

Home Science Tools

Product FAQs

Payment Info

Your Account

General Questions