About the Company

Diamond H Company, LLC, was formed in Arizona in 1994 to develop the concepts embodied in the Quick 220 Voltage Converting Power Tap. The first model was made available to the public and sold in 1998. In 1999, United States Patent 5,977,658 was issued covering the safety circuit employed within the Quick 220 Power Tap.

Diamond H manufactures the Quick 220 Power Tap in Phoenix, Arizona, USA. As a company, we are committed to supplying a high quality product supported with a high level of personal service.

Our business hours are 8 AM to 4:30 PM, Mountain Standard Time, Monday through Friday. (Arizona does not observe Daylight Time.) Please call if you have any questions.

Diamond H Company, LLC

613 W Bob o link Lane

Phoenix, Arizona 85023 USA

Telephone: 1-800-347-0394 (US & Canada) or 1-602-938-6057

Fax: 1-602-862-0215

Email: sales@quick220.com

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Diamond H Company, LLC, Phoenix, Arizona 85068-7489

Phone: 1-800-347-0394 (US & Canada) or 1-602-938-6057 Fax: 1-602-862-0215