Wix/Napa Gold are quality filters IME and in my observation of dissections here. They also have a very good beta making them 95% @ 20um.
That said, I would not pay the prices O'R asks for Wix filters. Prices are about in FU price range, which would make the Ultra the choice.
However my local Napa Store has a semi annual Napa Gold 40% off sale making them or fall seems most common.
As Wix being acquired by M&H, not being clairvoyant can't predict the future. However at this point haven't seen trending indicating a lowering in quality. As long as that doesn't change, I'll continue to use them.
That said, I would not pay the prices O'R asks for Wix filters. Prices are about in FU price range, which would make the Ultra the choice.
However my local Napa Store has a semi annual Napa Gold 40% off sale making them or fall seems most common.
As Wix being acquired by M&H, not being clairvoyant can't predict the future. However at this point haven't seen trending indicating a lowering in quality. As long as that doesn't change, I'll continue to use them.