★★★★★ 5
Amazon makes it so easy
Perfect fit, exact replacement part.
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Reviewed in the United States on May 13, 2026
BIONOVA - BN ZYM - 1LBionova Zym Enzymes ? Concentration 1: 2000 ? NPK 0 0 0 Bionova Zym is a natural bio catalyst (process accelerator), medium builder and medium improver based on specific enzymes. Enzymes stimulate the water retaining ability of every medium, which enables a quicker and better penetration of water into the medium. While Bionova Zym penetrates the substrate, it creates more oxygen! Bionova Zym will increase bacteria activities, which converts nutrients
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- We offer a 30-day return/exchange service after receiving.
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★★★★★ 5
Installed them works good.
Value for the money.
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★★★★★ 5
Good Plug if you need this model
These are the OEM for Kohler 7000 series I did service on. They needed to be gapped but that’s every spark plug.
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Reviewed in the United States on May 19, 2026
★★★★★ 4
Plugs
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Reviewed in the United States on March 30, 2026
