Monday thru Thursday 8-5, Friday 8-3, Saturday 8-12

49 S. Popular St.
Macungie, PA 18062


1001 Mark Boulevard St.

New York, NY, US.


Mon - Sat 8.00 - 18.00


Sales department

+01 2345 6789

About Master Supply Line

A family owned and operated business since 1989 in Macungie PA. Our goal is to bring our customers quality products at the lowest possible prices! Service and customer care are top priorities. We strive for excellence in product knowledge by continuing education for our employees and by staying up to date on the latest and greatest products to supply the Lehigh Valley!