Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Bonide Captain Jack’s Liquid Copper Fungicide Concentrate, 16 ozLiquid Copper Fungicide Concentrate, 16 oz Captain Jacks Liquid Copper Fungicide from Bonide helps control common plant diseases on edibles, ornamentals, and lawns. This 16 oz concentrate is approved for organic gardening and is effective against powdery mildew, downy mildew, blight, black spot, and more. Mix per label directions and apply with a sprayer for thorough coverage. Key Features: Organic Gardening Approved: Suitable for use on fruits,
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 1777 reviews
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Product Reviews
★★★★★ 5
Great buy
Perfect fit for all sizes. Fit together nicely for easy storage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Perfect fit
They are a rubbery flexible and fit just right in my back water and peppers.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Excellent solution to prevent vial contamination.
Good fit. Helps keep my vials sealed and sanitary. Clean before and during each use to prevent issues. The large caps are a great fit on 10ml water vials and the small caps are a great fit on 3ml research vials. The price was good, the variety of size and color are nice. Overall no complaints to report.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
💯
Súper buenas y se puede lavar
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Reviewed in the United States on March 9, 2026
★★★★★ 4
Great for the price
They are very nice quality, but the 3ml are a little tight on the vial. This is not necessarily a bad thing, but something to note. The 10ml are a little lose on 10ml, but work great on 30ml hospira bac water
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Reviewed in the United States on February 2, 2026
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