My unit is now 2 years old and am again using it this summer after recharging it last fall when it had leaked all the refrigerant. It is working great and hasn't leaked any more as far as I can tell. Very satisfied with the product.
Works amazing, recharged my Mini split!
With the use of a clamp on BPS valve, recharging was easy and the unit is cooling again. Still not able to find a leak with pressure back to normal. Probably won't know if sealant has worked until next summer.