General Filters 1A-25B fuel oil filter cartridge in a compact housing for final fuel filtration.
General Filters 1A-25B fuel oil filter cartridge in a compact housing for final fuel filtration.

General Filters 1A-25B Fuel Oil Filter Cartridge – Replacement, 12 PSI, 3/8 in NPT, 10 GPH

Boost reliability in oil-fired heating with the General Filters 1A-25B fuel oil filter cartridge. Designed for small...
Vendor: General Filters
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General Filters 1A-25B fuel oil filter cartridge in a compact housing for final fuel filtration.

General Filters 1A-25B Fuel Oil Filter Cartridge – Replacement, 12 PSI, 3/8 in NPT, 10 GPH

£66.97
General Filters 1A-25B fuel oil filter cartridge in a compact housing for final fuel filtration.

General Filters 1A-25B Fuel Oil Filter Cartridge – Replacement, 12 PSI, 3/8 in NPT, 10 GPH

£66.97
Description
Description
x

Boost reliability in oil-fired heating with the General Filters 1A-25B fuel oil filter cartridge. Designed for small to medium homes and light commercial spaces, this cartridge acts as the final filtration stage within central fuel oil distribution systems. It supports one- or two-pipe configurations and is rated for a working pressure of 12 psi, giving you a balanced blend of performance and compatibility.

Key specifications at a glance

  • Working pressure: 12 psi
  • Firing rate: #2 Fuel Oil at 10 GPH
  • Fits Generalaire 1300 series (1A-25B) with a complete 3/8 in NPT connection
  • UL listed for quality and safety compliance
  • Biofuel-compatible gaskets available for certain installations

Filtration media and fit

  • Replacement element: 1A-30 filter media wool felt (10 micron)
  • Felt surface area: 41 square inches; felt volume: 11.5 cubic inches
  • Unit size: 5-1/8 inches high by 3-5/8 inches in diameter

What this means for your system

The cartridge is purpose-built for final filtration in central fuel oil lines, helping to keep debris and impurities from advancing into your burner components. Its 3/8 in NPT standard connection supports straightforward installation, while the 10 GPH firing rate provides a practical filtration pace for typical residential and light commercial setups. The UL listing adds a level of assurance, and the compatible gaskets for biofuel blends expand the range of acceptable fuels you can use.

Real-world use scenarios include updating aging filtration stages in oil-fired furnaces, boilers, or warming systems where clean fuel delivery is valued. While outcomes can vary, users may notice smoother operation and reduced maintenance needs when paired with compatible filtration elements and proper system setup. This cartridge is designed to be a sensible upgrade or replacement that respects existing piping and filtration architecture, without promising specific results.

FAQ

Q: Who should consider the General Filters 1A-25B fuel oil filter cartridge?

A: Ideal for oil-fired heating appliances in small to mid-sized homes and light commercial spaces.

Q: What are the key features of the 1A-25B cartridge?

A: 3/8 in NPT fittings, 12 psi working pressure, 10 GPH filtration, UL listing, and a 10 micron replacement element.

Shipping & Return
Shipping & Return
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

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When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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