Looking for a prodigy slimline overflow box

[jetson]

I’ve been looking for an Eshopps prodigy slimline L overflow box for one of my 75 gallon tanks. So far over the last couple months, I’ve been unsuccessful. Has anyone here seen them with a reputable vendor, or is Eshopps having supply problems?
Bulk reef doesn’t seem carry them, saltwater aquarium has been out of stock, and Amazon is either unreasonably overpriced or unavailable, and it doesn’t seem possible to order directly from Eshopps as a consumer.