Parker's self-grip hose system Push-Lok for low pressure applicatios features the widest fluid compatibility, application and size range in the industry. The Push-Lok self-grip system is easy to use. No clamps or special tools are required during installation. And with Parker's exclusive color code system, you can inventory, maintain and identify your hose needs easily and efficiently. The industry's most complete line of low-pressure hose and fittings, Push-Lok offers the range and versatility to meet all your instrumentation needs.