valves

Hey guys, New reefer here. I have a 40B with a 20L sump. On my drain line I made the mistake of putting a brass nipple and gate valve. The sump has been running for about 6 days. I realize now that brass is not good for my tank but I’m wondering how long it is until it becomes totally toxic...

Hi guys. I will be buying a spears gate valve but will also need like true union ball valves and I wanted to save a few dollars as these will not be required for real flow management other than to turn on or off. I have seen these two you guys have any real life experience with these? They are...

Used for a bit to grow chaeto. Been sitting in garage. Has scratches but no leaks. Pick up for $60 Local pick up only. I'm in Rancho Santa Margarita.

So i am building a new 300 gallon tank and i was given the link to supplyhouse.com for fitting and they sell red flag valves for a great price but im afraid it may come at a cost. for instance a 3/4" true union schedule 80 valve on BRS (cepex) is $22.00, the same thing made by (red flag) is...

Has anyone used Perma Loc fittings for flex tubing? Is it reef safe and is it reliable?