Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Dwyer MARK II 25 Stationary Inclined-Vertical Analog Manometer - Stationary Analog Manometers
DwyerStationary Analog Manometers

Dwyer MARK II 25 Stationary Inclined-Vertical Analog Manometer

The DWYER MARK II 25 is a stationary inclined-vertical analog manometer with a 0 in wc to 3 in wc range. It features a Styrene Acrylonitrile housing and includes indicating fluid. Accuracy is ±3% of Full Scale (±3%…

SKU 3G-OTH-174656

Also listed as: MARKII25 · MARK-II-25

Brand
Dwyer
Item
MARK II 25 Stationary Inclined-Vertical Analog Manometer
Category
Stationary Analog Manometers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
MARK II 25
Series
MARK II
Accuracy
±3% of Full Scale
Includes
Indicating Fluid
Manometer Type
Inclined Vertical
Housing Material
Styrene Acrylonitrile
Accuracy (Full Scale)
±3% (F.S.)

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER MARK II 25 is a stationary inclined-vertical analog manometer with a 0 in wc to 3 in wc range. It features a Styrene Acrylonitrile housing and includes indicating fluid. Accuracy is ±3% of Full Scale (±3% F.S.).

Frequently Asked Questions

What is the DWYER MARK II 25 manometer used for?

The DWYER MARK II 25 is a stationary inclined-vertical analog manometer used to measure low differential air or gas pressure in HVAC, cleanroom, and industrial ventilation systems. Its 0 in wc to 3 in wc range and ±3% full-scale accuracy make it suitable for monitoring filter pressure drop and airflow.

What are the specifications of the DWYER MARK II 25?

The DWYER MARK II 25 has a 0 in wc to 3 in wc range, ±3% of full-scale accuracy, and a Styrene Acrylonitrile housing. It includes indicating fluid and is an inclined-vertical manometer. The manufacturer part number is MARK II 25.

Where to buy the DWYER MARK II 25 worldwide?

You can source the DWYER MARK II 25 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the DWYER MARK II 25 manometer?

Mount the DWYER MARK II 25 on a vertical surface using the built-in leveling bubble. Connect pressure lines to the high and low ports, fill with the included indicating fluid to the zero mark, and vent both ports to zero before use. Follow standard manometer installation practices.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer stationary analog manometers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Portable analog manometer with a vinyl-plastic housing and green indicating fluid. Measures differential pressure, static pressure, and vacuum from -12 to 12 in wc. Includes two nylon rubber tubing connectors. Suitable for field service and plant maintenance tasks
Dwyer
Portable analog manometer with a vinyl-plastic housing and green indicating fluid. Measures differential pressure, static pressure, and vacuum from -12 to 12 in wc. Includes two nylon rubber tubing connectors. Suitable for field service and plant maintenance tasks
Portable analog manometer with a 12-inch Flex U-Tube for measuring differential pressure, vacuum, or static pressure in low-pressure air or gas lines. Features a vinyl-plastic housing, green indicating fluid, and includes two nylon rubber tubing connectors. Suitable for HVAC, air filter, and gas burner monitoring
Dwyer
Portable analog manometer with a 12-inch Flex U-Tube for measuring differential pressure, vacuum, or static pressure in low-pressure air or gas lines. Features a vinyl-plastic housing, green indicating fluid, and includes two nylon rubber tubing connectors. Suitable for HVAC, air filter, and gas burner monitoring
Portable analog manometer with flexible U-tube design for differential pressure measurement. Includes two nylon rubber tubing connectors. Green fluid in vinyl-plastic housing. Typical applications include HVAC system balancing, air filter monitoring, and gas flow pressure checks
Dwyer
Portable analog manometer with flexible U-tube design for differential pressure measurement. Includes two nylon rubber tubing connectors. Green fluid in vinyl-plastic housing. Typical applications include HVAC system balancing, air filter monitoring, and gas flow pressure checks
Portable analog manometer with a 72-inch flexible tube and green indicating fluid. Measures differential pressure, vacuum, or static pressure from -36 to 36 inches of water column. Includes two nylon rubber tubing connectors. Vinyl-plastic housing
Dwyer
Portable analog manometer with a 72-inch flexible tube and green indicating fluid. Measures differential pressure, vacuum, or static pressure from -36 to 36 inches of water column. Includes two nylon rubber tubing connectors. Vinyl-plastic housing
Portable U-tube manometer with a 48-inch flexible tube and green indicating fluid. Measures differential pressure, vacuum, or static pressure from -24 to 24 inches of water column. Vinyl-plastic housing with two nylon rubber tubing connectors. Suitable for field service and plant maintenance in low-pressure air or gas systems
Dwyer
Portable U-tube manometer with a 48-inch flexible tube and green indicating fluid. Measures differential pressure, vacuum, or static pressure from -24 to 24 inches of water column. Vinyl-plastic housing with two nylon rubber tubing connectors. Suitable for field service and plant maintenance in low-pressure air or gas systems
Portable analog manometer with a vinyl-plastic housing and green indicating fluid. Measures differential pressure, vacuum, or static pressure from -60 in wc to 60 in wc with a 120-inch tube length. Includes a plastic case for storage and transport
Dwyer
Portable analog manometer with a vinyl-plastic housing and green indicating fluid. Measures differential pressure, vacuum, or static pressure from -60 in wc to 60 in wc with a 120-inch tube length. Includes a plastic case for storage and transport

More from Dwyer

View all Dwyer parts
Stationary U-inclined analog manometer with plastic housing. Measures differential pressure from -0.2 to 16 inches of water column. Includes 0.75 ounces of Red Gage Oil. Suitable for low-pressure gas and air applications in HVAC and industrial systems
Dwyer
Stationary U-inclined analog manometer with plastic housing. Measures differential pressure from -0.2 to 16 inches of water column. Includes 0.75 ounces of Red Gage Oil. Suitable for low-pressure gas and air applications in HVAC and industrial systems
Stationary inclined-vertical analog manometer with a range of 0 to 7 in wc. Housed in styrene acrylonitrile with ±3% full-scale accuracy. Includes red and green pointer flags for visual indication. Suitable for measuring low differential air or gas pressure in HVAC, cleanroom, and industrial ventilation applications
Dwyer
Stationary inclined-vertical analog manometer with a range of 0 to 7 in wc. Housed in styrene acrylonitrile with ±3% full-scale accuracy. Includes red and green pointer flags for visual indication. Suitable for measuring low differential air or gas pressure in HVAC, cleanroom, and industrial ventilation applications