Apollo PEX A Pipe, 1/2 in. x 300 ft.Apollo Pex is a 1 2 inch x 300 foot Pipe with RED Print Line for COLD Water Potable Supply Water. You can use the Coil Expansion Pex with Pex A fittings and sleeves (ASTM F1960). It is the only PEX A pipe approved for use with Pex B insert fittings, crimp rings, and stainless steel cinch clamps (ASTM F1807) in Potable Water installations. UPC: $PrimaryItemId$ Manufacturer Part No: EPPR30012 Brand Name: Apollo Sub Brand: PEX A Inside Diameter: 1 2 in.