Pacific Outdoor WxTx Pneumo Dry Bag?

I have used Pacific Outdoor WxTx Pneumo Dry Bags for several years, both 5L and 15L sizes. Wanted to buy a couple more of the 5L size for kayaking, but it appears that they are no longer manufactured. I’ve searched, googled, and consulted E bay, but can’t seem to find any. Anyone know of another source? Or recommend something similar with the air release valve?

Will put an air release valve in their dry bags, but those are pricey.

Seems Pacific Outdoors has disappeared.