🛠️ F12-12 WESTWOOD PURE-OIL FILTER ELEMENT – 10 MICRON (Sold Individually)
The Westwood F12-12 (F1212) Pure-Oil Filter Element delivers spin-on level filtration performance in a standard cartridge format. With a 10-micron fine filtration rating and a collapse-proof construction, it ensures clean, consistent oil flow for residential and commercial heating systems — including those using biofuel blends up to B20.
Note: This item is sold individually (each) — not in a 12-pack.
✅ Key Features
✅ Sold individually — not a 12-pack
✅ Upgrades any standard filter to spin-on level performance
✅ 10-micron filtration captures ultra-fine contaminants
✅ Same media design used in spin-on filters
✅ Collapse-proof construction ensures durability under pressure
✅ UL Recognized Component for verified safety and reliability
✅ Individually bagged Ultra-10 element with gaskets included
✅ Compatible with biofuels up to B20
📊 Specifications
Attribute | Detail |
Model |
F12-12 / F1212 |
Micron Rating |
10 Micron |
Filter Type |
Cartridge Element |
Sold As |
Individual Unit (not 12-pack) |
Includes |
Gaskets (bagged individually) |
Construction |
Collapse-proof media |
UL Status |
UL Recognized Component |
Fuel Compatibility |
No. 2 Fuel Oil, Diesel, Biofuel (B20) |
Performance |
Spin-on equivalent filtration |
Application |
Oil burner and fuel pump filters |
🔁 Cross Reference Table
Brand / Model | Replaces / Equivalent To |
General Filter |
1A-25A |
Unifilter |
77 |
Westwood |
F10, F12, F15, F20, F25 |
Sid Harvey (Mitco) |
264, 264F |
⚠️ Common Symptoms of a Clogged or Failing Oil Filter Element
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Burner lockouts or intermittent operation
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Reduced oil flow or delayed ignition
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Visible sludge or darkened oil in the canister
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Reduced burner efficiency or excessive soot
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Noisy fuel pump due to restriction
❓ Frequently Asked Questions
Q: How is this item packaged?
A: Each F12-12 filter is sold individually and includes new gaskets.
Q: What is the filtration level?
A: It provides a 10-micron rating, ideal for fine filtration comparable to modern spin-on filters.
Q: Can it be used with biofuels?
A: Yes — rated for biofuel blends up to B20.
Q: What filters will this replace?
A: It replaces General 1A-25A, Unifilter 77, Westwood F10/F12/F15/F20/F25, and Mitco 264/264F.
🛒 Shopping Tips
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Be sure to order the exact quantity needed — these filters are sold individually.
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Always replace the element and gaskets together to maintain a proper seal.
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Verify your filter housing type (F10/F12 or 1A-25A) before ordering.
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Keep a spare element on hand during the heating season for quick maintenance.
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Provides spin-on performance in a standard cartridge setup — a great upgrade without changing hardware.