SPECIAL ORDER ITEM. Review Returns Policy before purchase. This is a carbon steel cold press system designed for compressed air fuel gas and heating oil applications. Suitable for piping systems using ASTM A53 A106 A135 and A795 schedule 5 to schedule 40 carbon steel pipe. Approved for fuel oil and fuel gas installations under CSA LC4 and compliant with local authority requirements. Engineered for high performance with multiple fitting configurations and compatible with standard hanger support systems.