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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
For Your Every Summer RSVP, with Code: SUMMER15
Description
Grotek Pro-Silicate (0-0-4) 4 LiterWith a high concentration of soluble potash and silica, Pro Silicate was developed for use in soilless media and hydroponic systems where these elements may be lacking. While not considered an essential nutrient, plants accumulate silica in macro proportions for good reason. Silica is known to strengthen cell walls and overall cell integrity, which makes plants more resistant to abiotic stress such as heat and drought.

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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.7 ★★★★★
Based on 167 reviews
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Product Reviews
★★★★★ 1
garbage spark plugs
misfired after 30 minutes of driving cylinder 4 misfire code, left me stranded on the highway with baby in car. “(9621)” at the end of description is a lie, was not compatible with my vehicle even with compatibility test.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Actually works on BMW!
I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!
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Reviewed in the United States on November 12, 2024
★★★★★ 5
Works great
Works great
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Reviewed in the United States on May 26, 2025
★★★★★ 5
Great product
Fits the whole filter cover all the way...and the metal is great quality
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Reviewed in the United States on May 26, 2025
★★★★★ 5
great quality great price fast delivery
great quality great price fast delivery
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Reviewed in the United States on May 10, 2026
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