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Calibrated 4" Allenco Liquid Filled Gauge 0-400 PSI
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Calibrated 4" Allenco Liquid Filled Gauge 0-400 PSI

Our 4" Allenco series AG-1000L gauges are typically used as a hydrant gauge for flow testing or where accurate and stable readings are required. 

These high quality gauges are manufactured to ANSI B.40.1 Grade 1A standards, are 1% accurate over the entire gauge range and conform to NFPA 20-2010 ( as it relates to gauge accuracy.

The standard glycerine filling helps to provide a steadier gauge reading while also lubricating the gauge movement which helps to extend the gauge life.

These gauges have a 4" dial, PSI scale, stainless steel case, brass internals, and bronze bourdon tube with 1/4" NPT lower connection.

Calibrated gauges include test report and serial number. Gauges are tagged with serial number, customer name and calibration date. Annual re-certification is available.

Calibrated Gauges typically ship in 2-3 business days

Optional Gauge Accessory Kit includes (1) 1/4" Ball Valve, (1) 1/4" Street 90, and (1) 1/4" x 5" Nipple.

Optional Quick Disconnect Kit protects your gauges during repeated temporary installations, includes (1) Female Quick Disconnect and (1) Male Quick Disconnect 

Buy more for less:
1-2 items $84.95 / each  
3-4 items $80.70 / each save 5%
5 or more items $78.15 / each save 8%
  • $84.95
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Gauges are calibrated and certified when they are ordered. Calibration may take up to two days, please contact us or select Next Day Air service if required immediately. 

Calibrated gauges are labeled with unique serial number, company name, and calibration date. A printed report is included showing certification results. Reports are kept on file for at least one year, please contact us for replacement copies.

Per NFPA 20, gauges used for fire pump testing shall be calibrated annually. can provide annual re-testing. 

NPFA 20: Calibrated test equipment shall be provided to determine net pump pressures, rate of flow through the pump, volts and amperes, and speed. Calibrated test gauges, transducers, and other devices used for measurements required in during the test shall be used and shall bear a label with the latest date of calibration. Gauges, transducers, and other devices used for measurements required in during the test shall be calibrated annually at minimum.

Lead Times
97% of our orders ship within 1 business day. We stock most items in our warehouse and can ship most orders placed before 1pm CST on the same day. Priority is given to orders that select Next Day Air shipping. Items that are made to order will make note of their lead time in the item description.

Calibrated gauges may add 2 days to ship time, please contact us or select Next Day Air service if needed immediately.

Shipping Locations is located in the central United States, we can ship quickly to anywhere in North America. At this time, ships merchandise to locations within the United States and U.S. territories, including Alaska, Hawaii, Puerto Rico, Guam, and the US Virgin Islands. Additionally, ships merchandise to Canada and Mexico.Other international locations may not be able to purchase through this website and should contact us for purchasing inquiries.

Shipping & Delivery
The risk of loss and title for all merchandise ordered on this Web site pass to you when the merchandise is delivered to the shipping carrier.

Puerto Rico Customers
Puerto Rico orders must choose US Postal Service for shipping. Orders placed with UPS may be shipped via Postal Service at our discretion.

We accept American Express, MasterCard, Visa, and PayPal payments.

We will honor reasonable requests to return merchandise based on manufacturing defects only, upon which we will provide a refund or replacement per instance. is not responsible for the cost of shipping on returned merchandise. In some instances a restock fee may be charged. We will always do our best to reach an amicable resolution.

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