I've been looking for a SM breather for years and nothing seemed to fit the bill, there were several problems/limitations:
1) We had the conversions....meg/HH and the like, these were always to cumbersome, complex and they introduced way to many failure points with massive amounts of hose, they just seemed to negate the purpose of a SM breather....getting into small places.
2) Then there are the actual SM breathers however they are just to big and you still need to pipe in DIL from your other side so again it just seemed to defeat the purpose, how do you swing a breather that big in a small cave???? You don't
Now here comes the KISS.....so on a whim I decided to take the crossover it was recommended but not pushed by Johnathan Bernot of CCDS, I was skeptical and to my own fault I've been a critic of the KISS line for some time now. Well now its time for that hefty serving of humble pie.
The unit is fantastic and does exactly what a SM breather should.
I've figured out a way to mount 2 2 0r 3 liters in the unit so its totally self contained, I'll post pictures when my new unit arrives in a few weeks.
SM breather divers please provide feedback.
My layout is basically a SM DSV, a NERD and 2 bottles on the unit.