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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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Description
Douglas Fir Block DF-13 3.7" x 3.8" x 7.2"Douglas Fir Block DF 13 3. 7" x 3. 8" x 7. 2" 2 lbs. This is a slow growth block of Douglas Fir from the San Juan Islands of Washington. The growth rings are exceptionally closely spaced, similar to the rings seen in Old Growth lumber. This is due to the San Juan archipelago being in the rain shadow of the Olympic Peninsula. Total annual rain on the San Juans is approximately 25 inches, as compared to the 100+ inches received in the Olympic Mountains.
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Douglas Fir Block DF-13 3.7" x 3.8" x 7.2" 2 lbs. This is a slow-growth block of Douglas Fir from the San Juan Islands of Washington. The growth rings are exceptionally closely-spaced, similar to the rings seen in Old Growth lumber. This is due to the San Juan archipelago being in the rain shadow of the Olympic Peninsula. Total annual rain on the San Juans is approximately 25 inches, as compared to the 100+ inches received in the Olympic Mountains. The trees here are generally secondary growth and what we refer to as "slow growth" with their tight growth ring spacing. The color on this Douglas Fir is a warm warm reddish-brown with a hint of orange. The growth rings are exceptionally finely-spaced, with ~15 years of growth present in each radial inch of lumber. This block has been air-dried to 10-12% moisture content. There is one concave wane edge as shown in the photos. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Great product!
Style: Two Pieces
These were a perfect fit for my MB and very easy to install. Great value for the money. They should last given the way they were built.
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Work good
Style: One Piece
Fit and work perfectly.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
WHAT A MARVELOUS AIR FILTER.
Style: Two Pieces
SO FAR THESE FILTERS ARE MARVELOUS. THESE FILTERS ARE WELL MADE ESPECIALLY FOR THE PRICE. LOOKS LIKE A SIGNIFICANT $$$$ SAVINGS. TMP.
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Reviewed in the United States on March 9, 2026
★★★★★ 4
OEM quality
Style: One Piece
Good quality replacement. Perfect fit
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Reviewed in the United States on April 9, 2025
★★★★★ 5
Exact fit, no trimming needed
Style: One Piece
Ordered this for my Ford F-150 and it dropped right into the airbox perfectly — same dimensions as the OEM filter, same end seals, same fit. No gaps, no air bypass around the edges. Clean swap in under five minutes. Engine runs smooth and the price is unbeatable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
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