1-866-710-GROW Online Customer Service Hours M-F 9:00-5:00 pm

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* * * Please note: Contact forms were unavailable from 02/01-02/09. If you tried submitting a form during this time, please resubmit your information and we will be glad to assist. Thank you.

From grow lights to hydroponics and everything in between, HTG Supply has all of your indoor gardening needs covered and a knowledgeable staff committed to helping you succeed! 

Online Customer Service Hours

Monday: 9:00am - 5:00pm
Tuesday: 9:00am - 5:00pm
Wednesday: 9:00am - 5:00pm
Thursday: 9:00am - 5:00pm
Friday: 9:00am - 5:00pm




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