Check the listing for details. 2Pcs 3/8" Brass Flare Cap 5/8-18UNF Female Thread SAE Flare Pipe Fitting. Condition: New. Listed at 18.20 USD. If you have a damaged or worn-out cap in your HVAC system, these reliable brass seal caps are a great replacement part. This flare brass cap is suitable for terminating/closing pipe end, gas pipelines, and hydraulic, and refrigeration systems. It can be used with brass, copper, aluminum, and stainless steel tubes which can be flared.SpecificationColor: Brass ToneMaterial: BrassThread Size: Female 3/8 inchOverall Size: 21 x 16mm / 0.83 x 0.63 inch(L*W)Packing List: 2 x Brass Pipe FittingAdvantageMade from quality brass, this fitting is durable and can withstand the harsh conditions of HVAC systems. The cap provides a secure seal, preventing leaks and ensuring efficient operation. It is suitable for various air conditioner and refrigeration systems and is precisely machined to ensure a great fit.