NGL Supply Wholesale is committed to customer safety and education. We encourage you to review the important safety materials included on this page and to share them with your customers. Materials listed with a PERC item number can also be ordered from the Propane Education and Research Council at www.propanemarc.com or by calling 866-905-1075. Some items are also available in both English and Spanish. Please use the contact form below to contact us with any questions or to request copies of safety materials to be mailed to you.