Levo SL Gen 1 Levo sl and coil shock

[Myles_mtb]

Hello community. I am looking to buy a rock shox super deluxe ultimate coil RCT for my levo sl. I’ve found two online. one says it’s for a ibis and another doesn’t, they both have the same specs and eye to eye and shock length. But the ibis one is over £100 cheaper. What’s the reason for the price reduction and if I get the shock will it preform differently.