Cove Concrete 54 and 72 Linear Gas Fire Pit - 72", Linen, Electronic Ignition (Liquid Propane). A designer's dream come true. The Cove Linear Gas Fire Pit is the statement piece that transforms your backyard project from ordinary to extraordinary. Crafted from premium Supercast™ concrete with a sleek, contemporary profile, this fire pit brings modern sophistication to any landscape design. Special order - contact us for a quote.