Uniseals instead of Bulkhead for Bio Filter
hello i have a small buissnes, and currently use bulkhead fittings for doing koi ponds, i used alot for my bio filters and they leak after time, mark james told me that you have something better, uniseals, i was wondering if you could send me a sample of one so i can see for my self how they work without silicone, i hope this works and we can do away with the bulkhead fittings and silicone
