Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
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Description
Advanced Nutrients Ph Up®, 4LSay goodbye to nutrient lockout and hello to heavier harvests. Our scientists engineered pH Up with potassium hydroxide and pH Down with Phosphoric Acid, so you can easily achieve the ideal pH levels for optimal nutrient absorption. Weve developed these highly stable buffers to give you precise control over your pH, even after dilution or adjustments between reservoir changes. Recalibrate pH levels with maximum buffers Highly concentrated formulas for
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
4.7 ★★★★★
Based on 1019 reviews
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Product Reviews
★★★★★ 5
Fabulous set
Color: 09 - Light Blue, Size: Standard (20" X 26")
These are silky soft. No sweat and sleep is a dream on these. I have bought two sets now and friends have bought them to and just love them. Great quality and price! Wash and dry perfectly! Great on your skin and hair!
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Quality material; zips up the pillow with no problems
Color: 07 - Green, Size: Standard (20" X 26")
I love the material! It fits my Mellow Pillow just right.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Good quality
Color: 08 - Beige, Size: Standard (20" X 26")
They look great, feel great, great quality, and fair price. Totally satisfied
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Cooling and comfortable
Color: 07 - Green, Size: Standard (20" X 26")
Cooling and comfortable. I love the zipper case which helps my pillow from going flat. Will purchase again
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Great for Side or Back Sleepers
Color: White, Size: Queen
This is a great pillow. I love the adjustable feature because I was able to get the exact height which is comfortable for me. I am a side and back sleeper, and I found what I needed in this pillow.
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Reviewed in the United States on May 29, 2026
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