Innerspace Products Diatom Filter 1975 Ad
Innerspace Products, the manufacturer of the famous Vortex Diatom Filter made a strange “Pro-Filter 400” in 1975. Never Seen one, have you?
From the August 1975 edition of Aquarium Industry.
Innerspace Products, the manufacturer of the famous Vortex Diatom Filter made a strange “Pro-Filter 400” in 1975. Never Seen one, have you?
From the August 1975 edition of Aquarium Industry.