Best Compound Gauges

TWO PCS TONGUE AND GROOVE REVERSIBLE HARDENED top & bottom JAWS.
Reviews
Find Best Price at Amazon"I use this for welding off of my truck."

6" 3-JAW SELF-CENTERING LATHE CHUCK top & bottom jaws w. 1-1/2"-8 daptor plate6" - 3 JAWS Self-Centering T.I.R.---0.003" w. 1-1/2"-8 adapter backing plate PRECISION SEMI-STEEL BODIES.
Reviews
Find Best Price at Amazon"THIS IS MY SEC ONE ,, I GOT A 8" WHICH IS GREAT THIS ONE IS A 6" AND ITS ON MY 200 LOGAN LATHE AND I JUST LOVE IT. ITS GOING TO STAY ON .SOME TIMES I NEED TO PUT ON THE 8" WHICH IS 55 LBS."
"it was everything i could have hoped for."
"Perfect for a home-hobby lathe."
"It was everything I hoped for!"
"I got .004 off center (not concentric) but it is very repeatable in it's lack of concentricity to the threaded hole in the backing plate, a problem easily solved by grinding the jaws while it's on the lathe."
"It came with a backplate already attached for 1.5 x 8 tpi spindle."
"Very nice chuck."
"Works well for my use."

BS-1 Precision Dividing Head Headstock adjustable from 10 downward to 90 degree upward from the horizontal position.
Find Best Price at AmazonBest Vacuum Gauges

Documenting measurements: When you use the testo 552 in combination with the testo 570 digital manifold, you can save the testo 552's measuring values or display them directly on a laptop via the optional EasyKool software. Ensuring dehumidification: The testo 552 not only measures pressure, but also gives the water evaporation temperature associated with it.
Find Best Price at AmazonBest Differential Gauges

The DigiMag Series DM-1000 Digital Differential Pressure and Flow Gages monitor the pressure of air and compatible gases just as its famous analog predecessor the Magnehelic Differential Pressure Gage.
Find Best Price at AmazonBest Industrial Pressure Gauges

Super Pro 80960BU Pool Spa Filter Water Pressure Gauge, 0-60 PSI, Bottom Mount, 1/4-Inch Pipe Thread
This side mount gauge fits most D.E. Enter your model number to make sure this fits.
Reviews
Find Best Price at Amazon"I took the cover off this and compared it to my old Hayward gauge. So while you may not need a new gauge, you will probably want one to confirm the pressure is reading correctly after cleaning."
"It works fine, even with water in it, and the price is quite reasonable."
"I use the meter for measuring tire air pressure."
"This guage is doing fine and giving me solid pressure readings on my in ground sand filter system."
"To help keep water out, I installed the gauge so the face tilts slightly down toward the ground (maybe this is the trick to longer life?)."
"Last pool filter gauge lasted less than a year and cost more than double."
"Overall, cheap quality that will work for a few months."
"Installed the end of May,2017-3 months later and its already stuck and not working on my pool filter system."
Best Pressure Gauge Accessories

Mainly used to cut, distribution and change the direction of medium flow for water, oil, gas, etc. Specifications: Material: C46500 Lead-free Brass. Applicable medium: water, gas, oil. Nominal diameter: DN20. Pressure environment: Ordinary Pressure. Operating temperature: -10 ℃ ≤ t ≤ 120 ℃. Direction of flow: One Way. Drive: Manual. Thread: 3/4" NH thread. Maximum psi: 160 psi. Adjust Water Pressure from 0-160PSI - Adjustable water pressure setting can easily adjust whatever water pressure you want (from 0-160PSI, Preset at 45PSI) by screwer. Save water and protect your water pipes, water tanks, filters, water heaters.
Reviews
Find Best Price at Amazon"Good Quality pressure valve."
"good price."
"Works great well built product."
"The joints already have plumbing tape as well which point to the attention to detail. Make sure the gage itself (on any regulator) is out of the sun for long periods of time."
"I like the steady water pressure since all campgrounds seem to have different water pressure. There is nothing like getting water thrown all over you when you turn on a faucet with to much water pressure and my husband said it not good for the plumbing in the RV with to much pressure."
"This is built solid and is accurate."
"brass threads crossed will not allow hose connection."