Model # 1A25A

Internet #202312941

Store SKU #846406

null Boiler Oil Filter

Boiler Oil Filter

  • 3/8" Female connections
  • ETL listed and conforms to ANSI/UL std 331
  • Works with No. 2 Oil up to 10 GPH
$2088 /each
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Frequently Bought Together

Product Overview

Help keep dirt and water from entering your oil boiler system using this Boiler Oil Filter. Works with bio-fuels up through type B100. Body features a durable epoxy-coated galvanized steel filter bowl.

  • General oil quality
  • Compatible with most oil boilers
  • Durable epoxy-coated galvanized steel internal and external filter bowl with BioGasket
  • 4EVERLoc bottom bolt design for reliability
  • Note: product may vary by store

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Accessory type
Heating Product Type
Heating Technology Type
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty

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Customer Questions & Answers

Is a 1A-25B compatible with a 1A-25B

Asked by: Trip
Not sure I completely understand your question. The general filter you mention will accommodate a number of different replacement filters. I often use the 1A-30 which can be found on Home Depots site by putting SKU 202312942 in the search block
Answered by: chris
Date published: 2016-01-19

Does this come with filter installed ? Or do I have to purchase one ?

Asked by: Rich
That is a great question. I have done this for thirty years and have always assumed they do. But your question filled me with doubt. So I went to the warehouse and opened one to confirm that they do.
Answered by: chris
Date published: 2017-07-06

my filter cartridge is a 1a25 is that most like the 1a25a or 1a25b? its an older tank feeding a o...

my filter cartridge is a 1a25 is that most like the 1a25a or 1a25b? its an older tank feeding a oil furnace!
Asked by: bruce
Great question thank you for giving me the opportunity to answer it. 1A25A and 1A25B are not model numbers for the filter. They are the model numbers for the housing that holds the filter. Originally they produced the 1A25A then they added an epoxy coating to the inside of the housing to prevent corrosion to the metal caused by contaminants in the oil. The change was signified by the change to 1A25B. Both housings will accomidate a number of different filters.
Answered by: chris
Date published: 2016-10-31

What can I do when I lose pressure in my bathroom sink and in the tub

Asked by: Juice
First I would remind you that you can’t see pressure. The only way to measure it is with a gauge. People will say things to me like, “I have good pressure in the kitchen but bad in the shower.” This is almost always untrue. Pressure is for the most part consistent throughout the house. What they are really witnessing is a difference in volume. For example when you put your thumb over the end of a running hose, you are not affecting the pressure. Because pressure in constant you are converting the pressure and motion into velocity. I am not trying to be a know it all but to help you find your problem. If the volume to a particular bath or fixture has changed suddenly you want to look for what has suddenly limited the supply of water volume. It could be as simply as a clogged shower head or a valve that got closed somewhat. When I hunt for these things I often start with some baseline figures. I will take a 5 gallon bucket and see how long it takes me to fill it with hot water then cold water; using different fixtures. I will then go to Home Depot and get a pressure gauge that screws on to a hose connection and measure that. Sometimes I find that the flow and pressure are the same everywhere but appear very different. This can be caused by a shower head that is clogged or requires more water than you can give it; to form a nice shape. If the volume and pressure are different, I then go through the sometime long process of finding the obstruction that is limiting the flow. You are welcome to call and we can discuss. Chris 978 651 3301
Answered by: chris
Date published: 2015-11-17
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Customer Reviews

Boiler Oil Filter is rated 4.9 out of 5 by 7.
Rated 5 out of 5 by from Filters well and well made Using this on a waste oil furnace and its doing a fine job of filtering the dirty waste oil. It's been a month since installation and it's still flowing great and we haven't had to clean or service the nozzle weekly like we did with the other popular brand of filter.
Date published: 2017-03-22
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-07-13
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-04-03
Rated 5 out of 5 by from Bolt-in replacement was smooth! I bought this oil filter housing and filter to replace the old, corrodes one in the house. The original was the exact same model, so that made things easy. I just did Teflon on the fittings and tightened her up. It was good to go with no leaks as of yet...
Date published: 2016-12-07
Rated 5 out of 5 by from Excellent Value for the Bucks Spent Have been using this product since 1964, holding up well & replacement filters are low cost, but filter well, no nozzle clog problems in 48 years of use. All this without breaking the bank & mine was made in the USA too, so I like that. The bottom line is, works real good, lasts a loooooong time & doesn't cost too much, so that makes it a good bang for the bucks spent.
Date published: 2012-10-27
Rated 5 out of 5 by from Classic fuel oil filter Installation was easy with flare fittings and a flaring tool!
Date published: 2017-02-08
Rated 4 out of 5 by from It Pays to shop around A good filter, but I could have saved about $4 by buying a comparable one at Lowes
Date published: 2016-02-16
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