Set of 2 x "A" and 8 x "B/C" connector seal, the bigger "A" valve connection and the smaller "B/C" connection (circles in picture) Made from clear silicone type rather than black rubber, durable and stronger for leaking Coleman Bestway salu spas with square/round shaped air pump Fits saluspa airjet spas, including Miami, Palm Springs, Havana spa, Hawaii, Helsinki, Coleman spas and more, compatible with model numbers 54xxx 90xxx 600xx and 1380x Easy installation, Disassemble the spilt nut, take off the old black connection seal and clean residue, then install the new spa connection seal. DO Not over tighten the screws when re-assemble Easy installation, Disassemble the spilt nut, take off the old black connection seal and clean residue, then install the new spa connection seal. DO Not overtighten the screws when re-assemble