Upgrading your pool pump or connecting a larger hose to your plunger valve? These Type B pool hose adapters make the transition seamless. Each adapter converts 1.3" pool fittings to 1.5", allowing you to connect standard 1.5" pool hoses to plunger valves and other pool equipment. They're especially useful when upgrading from a low-flow pump system (3,785 L/h or smaller) to a higher-capacity pump (5,678 L/h or larger). Comes as a 2-pack so you have a spare on hand.