... on Outside Diameter, Wall Thickness, Theoretical Weight of type M copper tube Type LNominal Size,inchActual Outside Diameter,inchTolerance on Outside ... 0050.0020.0900.0093.336.Application:-Standard copper tubes of type L are used for interior above ground plumbing, domestic ... oil, HVAC, compressed air, LPG gas, snow melting and vacuum systems.-type L copper tube can be used with sweat, compression and ...