Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 12 - Jun 17
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Power Si Original 5LA little goes a long way with Power Si the original patented formula of monosilicic acid for plants. Power Si is proven to show benefits toward your crop's yield, vigor, strength and lateral branching. Power Si does not raise the pH of your water and is tank stable, so it's safe to leave inside your reservoir without creating any unwanted residue. Power Si can slow down vertical growth in crops with easy double dosage change to 1 ml per gallon of
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 868 reviews
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Product Reviews
★★★★★ 5
How well does it fit.
Color: Black-grey, Size: Medium
Material is a little thin, but fits well.
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Reviewed in the United States on April 1, 2026
★★★★★ 1
waste of money. not a flannel
Color: Purple, Size: X-Large
sizing is way off. the material isn't that of even a Walmart flannel shirt. it's a stiff crappy material. I leaned down to pick something up and I tore the shoulders of the shirt. horrible stitching.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Good quality true to size
Color: Orange, Size: Medium
Good material. My brother is 6’1 and 165 pounds and was able to fit the medium perfectly. So glad I didn’t get a large even though a large woulda been cool just a little oversized probably
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Reviewed in the United States on December 15, 2025
★★★★★ 3
Most comfortable
Color: Red, Size: XX-Large
A comfortable shirt . Nice and soft
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Fits well
Size: X-Large, Color: White
Perfect. Fits nice and very cheap.
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Reviewed in the United States on May 31, 2026
