Pressure Gauge,Glycerin Liquid Filled,2" Dual Scale Dia,0-160 psi/bar/kpa,1/4" NPT Brass Connection,Lower Mount, Stainless Steel Case,for Air Compressor,Pump,Tube,Valve,Gas Air Water Oil Test

Works great with a 3/8-1/4 coupler for making a pressure gauge attachment for my gaggia classic's stock portafilter. ♡

Funciona perfectamente y mide con precisión

Check hydraulic pressure

Has not been damaged by pressure surges like non-filled gouges that I bought before.

They are great little gauges, very well built and much nicer than the oil free gauges that came with my air compressor, best part is no more needle flutter, but you may need to buy extra fluid. The gauge where a little low but, not a deal breaker, and great customer support from the seller. Five stars for seller support and four stars for the product.

GREAT PRODUCT! HEAVY DUTY CONSTRUCTION AND CLEAN, VISIBLE VERBAGE! HIGHLY RECOMMENDED!

When I purchased this gauge, I was excited that I thought I thought I’d found a bargain. I had thought by buying a filled gauge that was twice as costly as a non-filled gauge that it would last a long time. Unfortunately it was more of a bust.I purchased this gauge (0-30 psi) in July for use on my in-ground pool’s sand filter for filter monitoring. This system operates in the 0-20 psi range, so the gauge should’ve been perfect for detailed monitoring. It was, all the way until I shut the system down in October for winter. Fast forward to a week ago (mid-June) and I was finally getting my system up and running for this year. Unfortunately, see attached pic, the gauge was busted. The needle was hanging at the bottom of the gauge and would try to turn the correct way, but hit the 0 stop any time my pump turned on. I reached out to the seller/manufacturer on Amazon and they politely told me it was indeed broken and that I should buy a new one every 6-12 months for accuracy. I will not be buying from this manufacturer again and hope that I can save someone else the same trouble.

Bought it as a gift