F-Type Female to Female F81 UHF Coaxial Coupler For TV Ohm RG-59 75 Cables G7M9

This should work. Very common. Amazon, Walmart, home depot and many more. https://www.walmart.com/ip/F-Type-Female-to-Female-F81-UHF-Coaxial-Coupler-For-TV-Ohm-RG-59-75-Cables-G7M9/13441861742?wmlspartner=wlpa&selectedSellerId=101229808&wmlspartner=wlpa&cn=FY25-ENTP-PMAX_cnv_dps_dsn_dis_ad_entp_e_n&gclsrc=aw.ds&adid=2222222229813441861742_101229808_0000000000_21407473164&wl0=&wl1=g&wl2=m&wl3=&wl4=&wl5=9052281&wl6=&wl7=&wl8=&wl9=pla&wl10=655792650&wl11=online&wl12=13441861742_101229808&veh=sem&gad_source=1&gad_campaignid=21690411341&gclid=CjwKCAjwl97RBhBWEiwAa9rbXcoUcQNa3BCNVNWERd8r9ceWFvwF2B3O3lxgxMpSLY9oa_gCG45xeBoC9AgQAvD_BwE