Southland - Southland is a leader in precision-made steel, and malleable iron pipe, nipples, fittings and related products. Manufactured in our North American facilities and threaded to industry specifications to provide a secure and trusted fit. Southland products are the trusted choice for plumbing, OEM, oil, gas and steam applications. Durable and highly resistant to rust and corrosion, every nipple and fitting is 100% inspected and quality tested.