Best in 7 days
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- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Emerald Harvest Cal-MagKeep your plants productive and green with Cal Mag, a calcium magnesium supplement from Emerald Harvest. Containing top quality ingredients, Cal Mag is designed to nourish crops with extra calcium and magnesium and create the right conditions for abundant flowering and a heavy yield. This is especially important when growing in some media, such as coco coir, but any garden can benefit. See the guaranteed analysis below for more information. Growers
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 795 reviews
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Product Reviews
★★★★★ 5
Good product!
Size: 500 Amp
Works great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Great fuse box
Size: 500 Amp
Easy installation takes a lot of power got it in 2 evls and a big bass 3k holding great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025
★★★★★ 3
Screw over tight during assembly
Size: 500 Amp
The screws that hold the block to the plastic make sure there not over tight the block will fall off the plastic easily
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
★★★★★ 5
Good product!
Size: 500 Amp
Works great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Great fuse box
Size: 500 Amp
Easy installation takes a lot of power got it in 2 evls and a big bass 3k holding great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025
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