I want to know are SSR available as a one unit i.e. zero crossing opto triac drvier, triac, & snubber. If yes please let me know the make and model for my application. i.e. switching solenoid operated pneumatic valves FESTO make jmfh 5 - 1/8 - 110 Volt A.C. with pulse of 16ms.

OR
You always have to make a SSR with the basic components i.e. opto triac driver, triac, snubber etc.

Thanks