Looks like Splendide bought or was bought by Ariston. Splendide's new line of RV W/D are carrying both names now. Splendide never had a washer dryer line only combo units, both condenser and vented drying. Small WP units are showing up in some RV's but I can't get any info on them. All are 110 volt dryers.
Post# 1082392 , Reply# 1   7/25/2020 at 17:45 (1,369 days old) by Rolls_rapide(.)  
To me, the Washer-Dryers scream "Indesit".
And as you say, the stackables are Ariston.
Along with Hotpoint UK/EU, Indesit and Ariston are part of the Whirlpool family.
A sudden thought... I wonder if any of those Splendide machines are affected by the fire safety recalls? Lint in the heater elements on the dryers, and the faulty door interlock on the washing machines.