*PLUMBERSSTOCK EXPERT* responded:
Hi! Thank you for posting a question regarding our Dial 9512 1/4" Delrin Sleeve & 1/4" Poly Tube Brass Insert. Unfortunately, we have not been able to find an answer to your question. We have contacted Dial and hope to hear from them soon. Please check back in with us at a later time, or leave your email address below and we can contact you as soon as we have the answer. But, if this may be of help, this product is used for rough plumbing, pipe, and conduit. Please check page 29 of this Catalog for more information about this product. We hope this helps. Thank you for visiting PlumbersStock.com. Have a wonderful day!