can it be used permanently ? connect it to the main water system of the house to measure regularly?

Yes it can be used permanently attached to a 3/4 hose faucet you dont intend to use , like a washer port or outside type hose faucet valve . I have these attached to the clean out/Flush out on cold water input supply side of a tank less water heater (I just leave the ball valve open instead of having port closed/capped.This allows you to get water pressure reading after water filters and have a diagnostic water pressure gauge if you should have problems with your tank less water heater issues of flow/pressure input.

Where are instructions? What is the significance of the red pointer vs. the black pointer and how long is the testing period?

No instructions. Just connect it to a spigot and turn the spigot on. The black needle will indicate the current pressure. Set the red pointer to where the black pointer is. The red will stay put to let you know if there has been a change in pressure. Example: turn on water, black needle goes to 70 psi. Set the red needle to where the black needle is. Perform any tests (i.e. turn off the water at the main valve from the meter with the spigot still in the on position). Check the gauge. Any movement indicates a leak in the system. The red gauge is your benchmark setting now. I used it to detect leaks in my water system. My meter is about 1/4 mile from the house. My wife could give me readings over the phone while I made adjustments upstream of the house.

Gauage filled with water, is this defective?

Yes. The gauge is not supposed to fill up with water. Mine remained dry after connecting to the line.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

2-1/2" Water Pressure Test Gauge, 0-200 PSI, Red Max Pointer, 3/4" Female Hose Thread, Rust-Free Corrosion-Resistant Case, Brass Connector, for Home, Garden, RV, Indoor/Outdoor

2-1/2" Water Pressure Test Gauge, 0-200 PSI, Red Max Pointer, 3/4" Female Hose Thread, Rust-Free Corrosion-Resistant Case, Brass Connector, for Home, Garden, RV, Indoor/Outdoor

Product ID: 120010836

Details

Brand
CARBO
Item Weight
5 ounces
Item dimensions L x W x H
3.9 x 2.4 x
Material
Copper Alloy
Number of Items
1

📏2.5" precision dial

🔴Red max pointer tracks peaks

🛠️3/4" universal hose thread

€ 20.65

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Description

🔴 Stay Ahead of Pressure Peaks with Precision and Durability!

COMPACT YET MIGHTY - 2.5" dial with bold PSI/Bar markings delivers clear readings in any lighting or weather condition.
PEAK PRESSURE TRACKING - Red max pointer captures pressure spikes so you never miss critical data.
PRECISION YOU CAN TRUST - ±2.5% ASME Grade A accuracy for flawless pressure readings every time.
EFFORTLESS COMPATIBILITY - Standard 3/4" female hose thread fits garden hoses, faucets, and RV systems—no tools required.
BUILT TO BRAVE THE ELEMENTS - Rust-free case, brass connector, and anti-fog lens ensure leak-proof, weather-resistant durability indoors or outdoors.

The CARBO Instruments 2.5" Water Pressure Test Gauge offers professional-grade ±2.5% accuracy across 0-200 PSI, featuring a red max pointer to track peak pressures. Its rust-resistant black plastic case, brass connector, and copper alloy internals guarantee long-lasting, leak-proof performance indoors or outdoors. Designed for universal 3/4" hose thread compatibility, this compact gauge is perfect for home, garden, RV, and hydraulic system monitoring, backed by a lifetime satisfaction guarantee.

Specifications

ASIN	B07PGXSWF5
Best Sellers Rank	#1,947 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Pressure Washer Gauges #5 in Industrial Pressure Gauges
Brand Name	CARBO INSTRUMENTS
Customer Reviews	4.4 4.4 out of 5 stars (4,466)
Included Components	Teflon, Rubber seal, Video Instruction
Item Dimensions	3.9 x 2.4 x 1.3 inches
Item Weight	5 ounces
Manufacturer	CARBO USA
Material Type	Copper Alloy Brass
Model	D25-P-W-200
Number of Items	1
Number of Packs	1
Part Number	D25-P-W-200
Set Name	2.5 inches
Thread Style	Npt
UPC	810017351800
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 20.65

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews