PRODUCT FEATURES The unique patented design of the Hudson Valve uses fluid pressure, as opposed to a lever arm and ball, as the force to close the valve. This compact, self-contained design greatly enhances the valve's reliability. The valve body is made of durable glass-filled nylon 6/6. Internal parts are of ABS plastic, silicone, and stainless steel. 1" FPT PORT Reviews FEATURED PRODUCTS Hudson Float Valve - Installation Kit $12.33 Add to Cart Giant Pressure Safety Relief Valve $13.83 Choose Options General Pump Thermal Relief Valve $16.35 Choose Options General Pump Safety Relief Valve $25.35 Choose Options