PRODUCT DESCRIPTIONReplacement prospot female spot weld caps - Electrodes i4 , i4sReplacement prospot female weld caps - electrodes - these weld caps will work with i4, i4s , PR-2000 and PHS-101 spot welders. Compare our 20 Pack to prospot part # PS-023/15. Works with prospot welders i4, i4s , PR-2000 and PHS-101 spot weldersCompare to prospot part # PS-023/15Compliant with automatic welding parameters machines20 Female "F" weld caps Package of 20TYPE (F) CapsFlat Spot weld caps / electrodesIncludes in reusable plastic clam-shell for easy storageWe are not a prospot distributor and you are purchasing a non-OEM part that replaces the original and comes with a 100 % satisfaction warranty.pro-spot, Pros