Can this be used on hot water ?

I have not used it with hot water. Still, it should work fine since there would be no flow of water going through it.

Is this product designed for continuous use? i’m looking to install this in my rv fresh water system. i’m curious about psi drop after 3 filters.

Can’t see why not, should work ok for that

Can this be used to measure the peak water pressure or does it only tell you the current pressure?

There is no flow through, it essentially a cap/plug for a water discharge port, that has a gauge on it to read the pressure. I did noticed that it worked best if I changed the pressure on the line to, disconnect the gauge and reconnect. Could have just been me as well.

Which adapter do I use for the shower arm water pressure?

It’s the black adapter with the ridged edge and the only one with threads in the inside. Screw that on your shower arm and the pressure gauge screws over the outer threads.

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Water Pressure Glycerin Filled Gauge Kit, All Purpose, 6 Parts Kit, 0 To 200 Psi, Standard 3/4" Female Garden Hose Thread Plus 5 Adapters To Test in Multiple Locations Indoors and Outdoors

Product ID: 49943662

Details

Brand
Flow Doctor
EU Spare Part Availability Duration
1 years
Item Weight
200 g
Item dimensions L x W x H
5.51 x 1.34 x
Material
Black Steel

💧0-200 PSI precision range

🔩6-piece all-in-one adapter kit

🛠️Durable black steel & copper build

$51.25

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Measure Like a Pro, Anywhere You Flow!

RUGGED DURABILITY - Built with black steel casing and copper fittings to withstand tough environments and frequent use.
MULTI LOCATION TESTING - Includes specialized adapters for sinks, toilets, refrigerators, and drip irrigation—cover every water outlet.
UNIVERSAL COMPATIBILITY - Fits standard 3/4" garden hose threads plus 5 versatile adapters for indoor & outdoor use.
QUICK CONNECT CONVENIENCE - Snap-fit adapters enable fast, hassle-free testing across sprinklers, irrigation, RV lines, and more.
PRECISION PRESSURE MONITORING - Glycerin-filled gauge ensures smooth, accurate readings from 0 to 200 PSI for all your water systems.

The Flow Doctor Water Pressure Glycerin Filled Gauge Kit is a robust 6-piece set designed for precise water pressure measurement from 0 to 200 PSI. Featuring a durable black steel and copper construction, it includes a standard 3/4" female garden hose thread gauge plus five specialized adapters to test water pressure across a wide range of indoor and outdoor plumbing fixtures, irrigation systems, and appliances. Its glycerin-filled dial ensures smooth, accurate readings, making it the ultimate tool for professionals and enthusiasts who demand reliable performance and versatility.

Specifications

ASIN	B01KX7PDD8
Best Sellers Rank	#37,759 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #477 in Garden Hose Parts & Connectors
Brand Name	Flow Doctor
Customer Reviews	4.5 4.5 out of 5 stars (1,897)
EU Spare Part Availability Duration	1 years
Item Dimensions	5.51 x 1.34 x 4.33 inches
Item Weight	200 g
Manufacturer	Flow Doctor
Material Type	Black Steel Copper
Model	PD-12130
Part Number	PD-12130
Thread Style	Female 3/4" Garden Hose Thread (Ght)
UPC	016463793779

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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