Self-sealing watertight FC-Dry HP uses corrosion-/chemical-resistant Type 300 stainless steel for connector and coupler body while coupler ferrules and alignment sleeves are machined zirconia. Keyed index connection ensures perfect terminus alignment every time. Assembly keeps transmission and optical performance intact by protecting fiber optic connection from wet environments and particulate. Tested to 1,000 psi with typical 0.3 dB light loss, connector handles temperatures from -40 to +85°C.