Universal Tank Application: Designed for custom builds or repairs, suitable for use on both fuel and oil tanks, Weld-On Steel Neck: Mild steel filler neck features a natural finish and 2-1/4" outside diameter for easy welding to steel tanks, Vented Twist-On Cap: Includes a twist-on steel cap that vents to the underside to help relieve pressure buildup, Zinc Plated Finish: Cap features a durable zinc-plated coating and includes a rubber gasket for a secure seal, Practical Filler Size: Cap measures 2-3/4" in diameter, making it large enough for convenient filling during service or refueling.
