I have a CO2Art SE two stage regulator with the included bubble counter and needle valve. I thought my valve settings were getting jostled as I dial in this new tank and mess with the systems, but I believe at least one issue is sometimes the CO2Art needle valve will generate a different bubble...

I am selling a 5lb co2 cylinder with an attached dual gauge regulator by Red Sea with an attached needle valve,long tubing and 2 co2 diffusers. altogether for $90.00. I can only do "pickup only" with these, and I'm in Elizabeth NJ. Payment is by cash only.

I managed to knock my needle valve so I have had to reset the bubble count to approximately what it was before. Say I put the bubble count too high, how long would it take for CO2 to build up to a point where it could harm my fish? Thanks :)

I am selling 2 co2 systems that are already put together and ready to go. One 5lb co2 tank with Taprite Dual Gauge regulator and needle valve. (needle valve works but isn't fancy) - $110 One 10lb steel co2 tank with Taprite Dual Gauge regulator and Fabio Needle valve. - $140 Both systems are...

Hey guys! I have a dual stage Victor brass regulator that I am selling, as I would like to go with stainless steel >:). It is still in perfect working order, having just had its insides placed a couple months ago and comes complete with an Ideal needle valve and mouse solenoid!! I really like...

I recently bought some regulators and had some extra parts laying around so I built some nice setups. This one is a Matheson dual stage regulator (model 3104C used previously for oxygen), solenoid, swagelok SS high precision needle valve, and output fittings. Can add on a bubble counter for...

I need to get a new o-ring to go between the standard CO2Art needle valve and bubble counter. I've tried searching around, but I can't find what that size of o-ring is called. Does anyone know what that size of o-ring is called and where they can be found? If necessary, I can order a new one...

I have found out a website where you can calculate the flow (Q) in scfm (standard cubic foot per minute). But to do that you need to fill in some data first: 1) Cv (flow coeficient) 2) Upstream Pressure 3) Downstream Pressure 4) Temperature 5) Specific Gravity for your gas ("Carbon Dioxide" in...

So I just got my first CO2 set up used from my local fish club. I jumped at it because it was a good price, but now that I've actually got it, I am beginning to second guess my purchase. I knew that the bubble counter was broken when I bought the unit, so today I went ahead and bought a new...

I have a few custom CO2 systems available. All systems will come with 3 feet of tubing for CO2, 1 high quality check valve, and 1 glass bubble counter. All systems are built by me and fully tested to ensure they are leaked free. Shipping is $17 (within U.S only) System 1: This is a new 312...

I have a few brand new Parker H3L valves that I have no use for. I've built two regulators and I'm glad I spent a little extra for a venier handle needle valve. I can ship each out for $65. If interested, then PM me.

Brand new never used bought it as spares when I had my planted tank. These are very high quality parts. Burkert 2822 stainless 24V DC Parker H3L metering valve $110 for both( will ship to the United States only and I do take paypal) price includes shipping and paypal fees to make it easy...

I want a fabco needle valve for my splitter, its a 3 way but I'm only using 2 of them. The one thats on there sucks. I want this Fabco valve http://store.fabco-air.com/proddetail.php?prod=NV-55-18&cat=112 From what I see I would need the part where I insert my brass bubble counter or the...

Hey guys, I am building my custom CO2 regulator and looking around for parts. I am lucky enough to have a Swagelok distributor in town (gotta love Portland, Oregon!) and, since I wont have to pay any shipping costs, looking very closely at their needle valves. It sure aint easy trying to...

Hi all! Today I had an extremely productive trip to the local airgas! Walked away with one of these: http://www.concoa.com/docs/catalogs/ADC3010AC_Spec%20Gas/Spec%20Gas%20Accessories/ADC%203010%20AC%20Diaphragm_Valve_Needle_Valves.pdf . I have the brass / stainless steel 550-0067. Anybody ever...

Hey, I just received my fabco nv-55, and I'm a little confused about the holes in it. The holes in the sides are where I want to attach barbs / tubing / check valves / potatoes, right? What do I do with the hole in the bottom? Do I plug it? Or is that where excess pressure is vented? Isn't...

I have four SS-31RF4 Swagelok SS needle valve sfor sale. New, no package. 1/4 inch NPT threading. 11 turns to open, great control. I can include 1 1/4" Push quick fitting to make it easy to attach to tubing for free. $22 Shipped USPS priority mail with tracking number. Uploaded with...

whats the procedure for turning on my co2 to go through the dual gauge and two stage regulator then solenoid with needle valve then bubble counter. iv never done it before and dont want to damage my reglator or needle valve

How do I know? It's not my knee. My C02 levels have never been as constant as I would like (BBA). From time to time I notice my reactor would cavitate(sp) / burb and, in the worst case, my fish would be up near the surface gasping by the time I got home from work. I started noticing that...

So, while I'm waiting for the big tank to grow in an emersed setup, I figured I would use my CO2 cylinder that's just sitting there and hook it up to my two 10gal tanks that were previously on DIY setups. I had everything setup and I turned on the CO2. Didn't see any bubbles so I cranked the...