Fabco NV-55-18 Needle Valve (Slotted Stem)
One of the most popular needle valve in the hobby today with great adjustability and able to retain set bubble count without the dreaded "drifting" that occurs in cheap, China made needle valves. NOTE: This version has the slotted stem (no white knob) . Helps with tamper proofing in-case you have little ones running around.
Why do you need a good needle valve for co2 injection in your planted aquarium? If you value life of your aquariums inhabitants, the needle valve is one component you don't want to skimp on. A constant problem with needle valves installed in off the shelf China made CO2 regulators in the market today is that they float. There's always a constant battle to re-adjusted the co2 flow rate. One day you'll be getting 1 bubble per second, the next day 5 bps and worst, co2 would be gushing out of the needle valve which leads to catastrophic result of gassing off all your aquariums livestock. So, buy it right the first time so you won't have to upgrade shortly down the road.
- 1/8 NPT ports
- Stainless steel needle - 3° taper
- Friction O-Ring provides “stay-put” adjustment
- Slotted Tamper Proof Stem
- Buna-N seals
- Air or Hydraulic service to 150 psi