[FivePointOhh]

to be honest im not 100% sure if they are. but im pretty sure its all the same, rubber umbrella seals are for singles, teflan for doubles and viton for triples. maybe summit tech line could tell you for sure if you told them what springs you bought or someone will chime in and tell you if you need them. i got them with my springs though since it was suggested and ive read a few tiems on here the normal seals dont work with double springs.