Malida Water Pressure Gauge Stainless For Aquarium Meter 0-1.6MPa 0-220psi Reverse Osmosis System Pump With 1/4

order two of these to monitor water pressure before and after my softener\filters.I tested the gauges and they were within 1-2psi of a known accurate gauge.some reviewers complained about these leaking at the connector. I did not have this issue. over-tightening of plastic connector is a common mistake for most DYI`ers. as with ANY plumbing connection. over-tightening will NOT stop a leak. in fact it will make it worse and even break the connection. connectors like the included one should be hand tightened and then just another 1/4 turn with a small wrench.what I did with this connector is to just put a small O-ring into the connector (it should have included one but unfortunately does not). I then used RectorThread #5 pipe thread sealant instead of PTFE tape. PTFE tape is technically not meant to SEAL pipe threads. it is meant to lubricate NPT threads for assembly. some sealing occurs as an after-effect but it is not its primary function. doing this sealed the connector properly and i have NO leaks.other users complained that the gauge is is not fully filled with Glycerin. this is by design. all of these types of gauges have a small air bubble in them. some of the top of the line high pressure fuel gauges i use in my race car have this bubble. now, if it all leaks out or is only half full then it is defective and should be returned.in any case, these gauges look great and perform perfectly.

Works perfectly, just make sure to use a pressure valve to measure the PSI before installing onto (in my case) the RO water filtration system. I used two valves to aquire the desired PSI. Valve first then two water keys. Open both, then use the closest one to you to regulate until the desired pressure is aquired, once done then you can use the farthest key from you to simply open and close without worrying about adjusting water pressure every time. Let me know you guys I can go very detailed if you want.

Requires an embarrassing amount of thread tape to prevent leaks. Otherwise, this would be a Five star review. Good quality gauge, decent connectors included. If the seller wants to mismatch threads to save money, they should disclose this.I already had one of these, just added two more to different stages in my water filtration & RO system. It's a good buy, but the leaks are frustrating until you figure out the thread tape & mismatched threads.

1/4" or 6mm? Package says both. Really? 6mm nipple on gauge does not fit 1/4" tee adaptor. Wrapping thread tape around it 15 times is not the answer to preventing a potentially expensive flood in your home. MFGR- provide the matching size fitting with your product!

Disappointed with the install. No directions and mine was missing the tiny rubber o-ring that seals the threaded gauge to the connecting tubing. I fumbled with leaks on connecting this for a while before i realized this was missing. I was able to use thread tape to seal it, though it is not recommended. Do check to make sure you have the o-ring/washer before connecting. Other than that it seems functional and fine quality.