Pneumercator S4K3 4" 316SS #6 Oil/Water Float Kit, End Cap, Cathodic Boot is a four-inch stainless steel float assembly designed for use with compatible Pneumercator probes to monitor #6 oil product level and water accumulation at the bottom of a storage tank.

4" 316 Stainless Steel #6 Oil/Water Float: The 4" diameter 316SS float is configured for heavy fuel oil service, allowing it to track the #6 oil surface while responding when water collects beneath the product layer.

End Cap for Guided Installation: An end cap at the lower end of the assembly provides a clean termination and helps guide and protect the float when installed inside a stilling well, riser, or probe shaft.

Cathodic Boot Protection: A cathodic boot is included at the bottom of the assembly to help reduce galvanic corrosion on submerged stainless components, improving long-term reliability in tanks that may contain both water and heavy fuel.

System Compatibility: S4K3 is intended to be used with compatible Pneumercator magnetostrictive probes and tank monitoring systems that measure both product level and water interface using dedicated float kits in heavy oil service.

Typical Applications: Common uses include underground and aboveground #6 oil storage tanks, boiler fuel tanks, and heavy fuel oil systems where reliable detection of water beneath #6 oil is needed to maintain fuel quality and protect downstream equipment.